The examples of lines of evidence that provide support for common ancestry and evolution are:
fossil recordsuniversal genetic codons homology among organisms.The fossil records are the traces or remains of the ancient organisms. They provide a lot of information about the changes and evolutions among the fossils and the current organisms. Genetic codons are universal among all the living organisms even though they are morphologically and functionally very different from each other.
Homology is the occurrence of similar body structures among two distinct organisms. This demonstrates how the organisms had common ancestors and then involved into two different species.
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Answer:
There are multiple lines of evidence that provide support for common ancestry and evolution; this would be homologous features of anatomy and embryology and fossil records.
In comparative anatomy, there are many similarities between species because all life is related. Homology is similarities seen because of the ancestry of features or genes in an organism. Similarities can show descent from common ancestors and similarities can be seen in body structures, development, and DNA. Homologous structures are similar traits found in two different species that are the result of having a common ancestor. These structures are similar but may have different functions. An example of this might be the homologous structures in the limbs of humans, cats, whales, and birds. And then there are analogous structures, which similarly is that the structure of different species are similar because the trait is advantageous, not because they are related. An example of this is sharks and dolphins having similar fins. Along with anatomy is Embryology. Different species can have similar embryos because they come from a common ancestor. They may start with the same developmental plan but change drastically as they grow up. An example of this is seen in the early stages of development between fish and chicken embryos.
Next up, the fossil record provides evidence that supports common ancestry and evolution. The fossil record provides us with visual evidence for evolution. The fossil record directly allows us to pinpoint if there are any similar structures amongst organisms and see if there are any vestigial structures from ancestors that remain in organisms that still roam today. The fossil record depicts evolutionary change over the past four billion years, which can be seen through transitional forms, increasing complexity of life, and geographical distribution. Transitional forms are fossils that show intermediate states between an ancestral species and its evolutionary descendants. Increasing complexity is seen as life on earth becomes more complex. That and geographic distribution which has been studied closely and found that the continents have moved over time and that the fossil record reflects this movement. Fossils of different animals can be found on different continents around the world due to continental drift.
Explanation:
Explain Phenomena in Terms of Concepts How does a magnetic field
change as you move away from a magnet? At what point does it end?
The strength of the magnetic field H and the strength of the magnetic
induction B can both be used to describe magnetic phenomena. The relationship provides the magnetization, or the magnetic moment per unit volume, or Mv. (9.80) in which 0 represents the permeability of a vacuum
How would you describe the lines of the magnetic field?Closed loops with no beginning or end are created by continuous magnetic field lines. From the north to the south pole, they travel.
Magnetic field lines are fictitious lines that are used to depict the magnetic field's direction at a particular spot.
South pole to north pole and north pole to south pole magnetic field lines are present both inside and outside the magnet, respectively.
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which of the following statements is false? group of answer choices a-b-o antigens are present in all human blood. dried bloodstains may tentatively be identified as blood by a color test. all bloods contain the enzyme hemoglobin. the kastle-meyer test is used to determine whether blood is of human origin.
The correct statement is the Kastle-Meyer test is used to determine whether blood is of human origin.
What is Kastle-Meyer test?The Kastle-Meyer test is a presumed blood test that was initially introduced in 1903 and uses the chemical indicator phenolphthalein to look for potential hemoglobin present.
What does a Kastle-Meyer test do?Since many years ago, the three-stage Kastle-Meyer (KM) test has been employed as a quick, presumptive test for blood. Using hydrogen peroxide to catalyze the oxidation of the indicator phenolphthalein, which turns it pink, the test determines the existence of hemoglobin's (heme) component.
Thus from above conclusion we can say that the correct statement is the Kastle-Meyer test is used to determine whether blood is of human origin.
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which statement is an example of a chemical change? group of answer choices a plant converts carbon dioxide into carbohydrates. ice cubes are formed in the freezer. a tree is cut down in the forest. confetti is cut from pieces of paper. water evaporates from a lake.
An example of a chemical change: A plant converts carbon dioxide into carbohydrates. Ice cubes are formed in the freezer.
Chemical change arises when a substance combines with every other to form a new substance, known as chemical synthesis or, as an alternative, chemical decomposition into extra distinctive substances. those tactics are called chemical reactions and, in widespread, are not reversible except by using similar chemical reactions. Wikipedia
The five conditions of chemical exchange: coloration exchange, formation of a precipitate, formation of a fuel, smell trade, and temperature trade. A chemical exchange happens when one chemical substance is transformed into one or more one-of-a-kind materials, such as when iron will become rust. Chemical adjustments occur through the method of chemical reactions, and the ensuing materials have different residences because their atoms and molecules are organized otherwise.
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"Why is each part of the cell essential to survival?" please write and answer in CER form
Each part of the cell is essential to survival because they perform the necessary functions which help keep us alive.
What is a Cell?This is referred to as the simplest unit of life and becomes aggregated to for tissues which have similar structures and functions.
Let's take the eyes for example, if the cells are damaged then it will lead to the reduction in its function which in this scenario is a bad sight or having troubles seeing correctly. This in turn leads to not being able to work or move away from hazardous substances which is why each part of the cell is essential to survival.
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Blood type is an example of ____________, in which two alleles may be expressed, but neither one may be dominant over the other.
Blood type is an example of codominance, in which two alleles may be expressed, but neither one may be dominant over the other.
In the field of genetics, codominance can be described as a phenomenon in which the different types of alleles for a particular gene are both expressed in an organism. There is no recessive allele in such a case as both alleles express themselves.
An example of codominance is the ABO blood group system. All the alleles A, B and O express themselves separately and none of them is recessive to the other. Both the alleles for these genes express themselves in an individual and determine the blood type of an individual.
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students conducted a controlled experiment to investigate whether sawdust provides enough nutrients to support plant growth. the students separated ten nearly identical sunflower seedlings into two groups. they grew the seedlings in the first group in potting soil and the seedlings in the second group in sawdust composed mostly of cellulose. after twenty days, the students recorded observations about the seedlings
The observed differences between the groups most likely resulted from differences in the ability of the seedlings to produce glucose monomers.
What are the nutrients required for plant growth?Nutrients are those compounds or substances that provide living organisms with the materials they require for their growth and metabolism.
The main nutrients required for the growth and development of plants include:
carbohydratesproteinslipidsminerals such as carbon, nitrogen, phosphorus, iron, magnesium, oxygen, etc,The nutrients required by plants for their growth are obtained from the soil, the atmosphere, as well as from water.
Plants require these minerals from fertilized soil, else they will have as stunted growth and will not be able to produce their food in the form of glucose monomers.
Saw dust lack these nutrients and plants will not grow well in sawdust.
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Complete question:
Students conducted a controlled experiment to investigate whether sawdust provides enough nutrients to support plant growth. The students separated ten nearly identical sunflower seedlings into two groups. They grew the seedlings in the first group in potting soil and the seedlings in the second group in sawdust composed mostly of cellulose. After twenty days, the students recorded observations about the seedlings in each group. The students’ observations are presented in the table. Treatment Group Mean Seedling Height Observations Seedlings in potting soil 18.5 cm The leaves have a dark green color and are normal in size. Seedlings in sawdust 4.8 cm The leaves have a grayish color and are small in size. The observed differences between the groups most likely resulted from differences in the ability of the seedlings to produce which of the following monomers?
when an infectious disease cannot spread in a population because it lacks a significant number of susceptible hosts, the phenomenon is referred to as contact immunity herd immunity. active immunity. passive immunity.
An infectious disease cannot spread in a population because it lacks a significant number of susceptible hosts, the phenomenon is called contact immunity herd immunity.
What is herd immunity?
Herd immunity, also known as herd effect, community immunity, population immunity, or mass immunity, is an indirect kind of defense that only works against infectious illnesses. It happens when a sizable portion of a population has developed an immunity to infection, whether from prior infections or vaccinations, decreasing the risk of disease for others who do not have immunity.
When herd immunity is attained, illness progressively vanishes from a community and, if accomplished globally, may lead to zero elimination or a permanent reduction of infections.
The creation of herd immunity through vaccination has helped to reduce the prevalence of numerous illnesses.
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During pyruvate oxidation pyruvate is converted to a molecule of acetyl. Pyruvate is a 3-carbon molecule while acetyl is a 2-carbon molecule. What do you think happened to the carbon molecule that was lost?.
The lost carbon is released in the form of carbon dioxide.
The oxidation of pyruvate to acetyl CoA is a one step process requiring cofactor. The oxidation reaction involves conversion of [tex] {NAD}^{ + } [/tex] to NADH. In the step, [tex] CO_{2}[/tex]
is released.
Also, CoA-SH also enters the reaction for reaction with the molecule of pyruvate. Pyruvate dehydrogenase complex is used for catalysis of reaction. The resultant product is acetyl CoA.
The reaction is a very important intermediate step. It makes the molecule of pyruvate usable for generation of ATP. The acetyl CoA is used in the next step which is Kreb's cycle.
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A, Glucose turns into pyruvic acid. Energy and O 2 enter the cell. B, Oxygen and energy in the cell turn into H 2 O. C, Mitochondria in the cell and C O 2 exits the cell.
Label the main steps in the cellular respiration model.
A:
B:
C:
The steps in cellular respiration are ordered as follows:
A. Glucose turns into pyruvic acid.B. Energy and oxygen, O₂ enter the cell.C. In the Mitochondria, oxygen, O₂, and energy in the cell turn into water, and H₂O and CO₂ exit the cell.What is cellular respiration?Cellular respiration is the process by which large organic food molecules are broken down to produce energy in the form of ATP for the body.
Cellular respiration occurs in two ways:
Aerobic respiration - this occurs in the presence of oxygen and results in a large amount of ATP produced.Anaerobic respiration - occurs in the absence of oxygen and produces fewer ATP molecules.Learn more about cellular respiration at: https://brainly.com/question/425991
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Answer:a c a
Explanation:
Using your knowledge about the relationship between cell cycle and cancer,
explain what was happening with the cells from Henrietta Lacks
This is for genetics
The relationship between cell cycle and cancer is based on that cancer cells undergo uncontrolled cell cycles due to mutations that affect this process, which occurs in HeLa cells.
What are HeLa cells?HeLa cells represent one of the ist worldwide known cell lines of cancer cells obtained from Henrietta Lacks, specifically cancer cells derived from cervical cancer.
Therefore, we can conclude that HeLa cells are cancer cells, which can divide indefinitely because they suffered mutations that affected certain aspects of the normal cell cycle, thereby generating tumorigenic cells that can be used as cell lines.
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PLEASE I know this is simple but can you just give me the answer I need to bring my grade up in bio PLEASE I LOVE YOU
Explanation:
Its a mitochondria and it supplies energy to the cell
help
1. How might Margaret Mead have been biased by her culture and experience when she examined the culture of the Samoans?
2. Do you think any human universals appear in all cultures? Can you think of any universal taboos?
3. One of the main criticisms of Mead was that she did not use "science" in her approach to the study of Samoan people and culture. While she is also criticized for not spending enough time in Samoa to make a proper assessment, she used observation methods to come to her conclusions. Assess how effective you think observation is to the study of anthropology. In the case of Margaret Mead, do you think her observations were correct? Why or why not?
4. Why do you think Mead's own sexuality and identity were discussed in the article?
5. How can a researcher eliminate their own bias and subjectivity when they observe another culture? Won’t they always interpret what they see through the lens of their own experience and culture? Explain your thinking.
The article under reference is "Margaret Mead: Human Nature and the Power of Culture". See further explanation and the answers below.
How might Margaret Mead have been biased by her culture and experience when she examined the culture of the Samoans?It is possible that Margaret Mead was biased by her culture and experience when she examined the culture of the Samoans because:
In human nature, there are indeed universal taboos. Some of them which were corroborated by Sigmund Freud are:
Incest; and Cannibalism.It is right to test the strength of her arguments on the basis of the methods she used to carry out her research. Science ought to be practical and very factual. While Observation is one of the methods of gathering primary data, in this case, there is no way to know if the Samoans were being polite because she was a visitor and so didn't act like they would if she was not there.
Observation in science ought to be carried out in such a way that the population or sample being observed is not interfered with while the observer remains undetected.
Mead's identity and sexuality were brought into the article because it was important for the report about her own report to be objective. Although the article does not explicitly state this, the information given about Mead's sexuality gives the reader an idea of the possible elements that could have led to her being subjective if at all.
Except such research is subject to peer review, it cannot be determined with absolute certainty that some elements of subjectivity won't be involved.
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what pair of molecules are commonly used by living cells to carry electrons and hydrogen atoms (thus serving as reserve chemical energy and electron transport molecules) during aerobic cellular respiration reactions?
NADH & FADH₂ pair of molecules are commonly used by living cells to carry electrons and hydrogen atoms.
Cell respiratory is the system with the aid of which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to supply big quantities of energy, to power the majority production of ATP.
Cell respiration is a chain of chemical reactions that spoil down glucose to provide ATP, which may be used as power to strengthen many reactions at some stage in the frame. There are 3 principal steps of cell respiratory: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Cellular respiratory is the procedure by which food, within the form of sugar (glucose), is transformed into energy inside cells. Mobile respiration is the method with the aid of which cells in plant life and animals damage down sugar and flip it into electricity, which is then used to carry out work on the cellular degree. The motive of cell respiration is simple: it presents cells with the energy they need to feature.
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Explain, in your own words, how you would use the light microscope to view a wet mount of a protist, assuming the microscope is plugged in and that the light source is on.
A light microscope is an instrument commonly used in the laboratory which makes use of light rays for viewing and enlarging smaller objects/organisms.
The wet protist is first of all put on the slide then the slide is placed on the Stage which is the flat podium where the slides containing the samples are put for viewing.
The Stage clips are then used to hold the slide containing the wet protist in proper place for a better viewing result.
The Coarse and fine focus knobs are used to adjust the stage by raising and lowering it .
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A fast food restaurant wants the average number of total carbohydrates in their items to be less than 50g. How can they use formulas to know if they have met this goal?
To count there goal they can multiply the carbohydrate grams by 4. Divide this result by the total number of calories to get the percent of carbohydrates in the food.
A calorie is a unit of ways a lot strength is in a given quantity of meals, additionally known as a kcal. Regardless of whether or not the carbohydrate in meals is sugar or starch, all carbohydrates offer the frame with four energy/gram, explains Dr.
The Dietary Guidelines for Americans endorse that carbohydrates make up 45% to 65% of general every day energy. So in case you get 2,000 energy a day, among 900 and 1,three hundred energy need to be from carbohydrates. That interprets to among 225 and 325 grams of carbs a day.
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How do ions help keep your heart beating? Responses distributing electrical charges distributing electrical charges easily transporting messages easily transporting messages dissolving in your blood stream dissolving in your blood stream readily bonding with other atoms
According to the research, the correct option is distributing electrical charges. Ions help to keep the heart beating by distributing electrical charges.
How do ions keep the heart beating?Ions are a group of atoms that gains electrical charge and the direction of movement of these ions (in or out) influences the electrical activity in the human heart by sodium-potassium pump.
In this sense, the sequence of contractions of the heart is produced by depolarization distributing electrical charges, that is, the inversion of the electrical polarity of the membrane due to the passage of active ions.
Therefore, we can conclude that cardiac activity is mediated by the passage of ions that distribute electrical charges between the interior and exterior of heart cells.
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active and passive transport are important processes that help the cell(1 point) responses metabolize materials. metabolize materials. change size and shape. change size and shape. regulate the uptake and removal of materials. regulate the uptake and removal of materials. maintain the cellular membrane. maintain the cellular membrane.
Active and passive transport are important processes that help the cell regulate the uptake and removal of materials.
For a cell to carry out its function, the necessary materials need to move in and out of a cell. The cell also needs to take in energy and move out waste molecules.
Active and passive transport are the methods through which materials move in or out of a cell.
Such a process of movement that does not require energy is referred to as passive transport.
Such a process of movement that requires energy for the movement of molecules across the cell is referred to as active transport.
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What do you think is the same characteristic/attitude of a person and your chosen pets?
Chosen pet: Dog and Cat
Answer:
gentle, caring, enthusiastic, loving
Pls help I’ll give you 25 pints
Answer:
1. Water
2. groundwater and ocean
3. evaporation and transpiration.
4. precipitation and runoff
5. precipitation
6. pollutants could be brought down to contaminate rivers, streams, lakes, and oceans.
Question 4
Which describes this statement, "The frog is 4 cm long"?
A) inference
B) quantitative data
C) control group
D) qualitative data
Answer: Quantitative Data
Explanation:
The statement is describing a measurement taken of the frog.
A is wrong because we are certain the frog is 4 centimeters
B is correct
C is wrong because we are focusing on a single data point
D is wrong because 4 centimeters is a specific quantity not a "quality"
Which molecule would pass through the membrane by simple
diffusion?
Answer:
Oxygen
Explanation:
Answer: gases such as 0z
Explanation:
researchers collected seeds from a certain wild plant and planted them in groups of kin (seeds of the same mother plant) or non‑kin (seeds from different plants). each group of four seeds was planted either together in one pot or in a cluster of four pots that contained the same volume of soil. after eight weeks, the researchers measured the amount of roots each plant had produced. they found that related plants grown together in one pot produced smaller root systems so as not to compete with one another. plants grown in separate containers and non‑kin plants grown in a single container had 15% more roots.
It is an experiment.
Experiment to demonstrate that related plants grown together in one pot produced smaller root systems in order to avoid competition, plants grown in separate containers, and nonkin plants grown in a single container had 15% more roots.
The complete question is:
Researchers collected seeds from a certain wild plant and planted them in groups of kin (seeds of the same mother plant) or non‑kin (seeds from different plants). each group of four seeds was planted either together in one pot or in a cluster of four pots that contained the same volume of soil. after eight weeks, the researchers measured the amount of roots each plant had produced. they found that related plants grown together in one pot produced smaller root systems so as not to compete with one another. plants grown in separate containers and non‑kin plants grown in a single container had 15% more roots. Was this a sample survey, an observational study, or an experiment? an observational study an experiment a sample survey.
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Given equal probabilities of the birth of a xy or xx, what is the probability that a group of four siblings includes all xy? all xx? all xy or all xx?.
The Probability that a group of four siblings includes all xy is 1/16; all xx is 1/16; all xy or all xx is 1/8.
The area of mathematics known as probability deals with numerical descriptions of how likely it is for an event to happen or for a claim to be true. A number between 0 and 1 is the probability of an event, where, broadly speaking, 0 denotes the event's impossibility and 1 denotes its certainty. The likelihood of an event occurring increases as its probability increases. Tossing a fair (unbiased) coin is a straightforward illustration. The probability of either "heads" or "tails" is half since there are no other conceivable outcomes and the coin is fair, meaning that both outcomes ("heads" and "tails") are equally likely.
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List several factors that may interfere with an embryo's development
Answer:
Genetic, nutritional, environmental, uteroplacental, and fetal factors have been suggested to influence fetal growth. Uteroplacental and umbilical blood flow and transplacental glucose and fetal insulin are major determinants of fetal growth.
D. At a research lab, a scientist carelessly pours cultures of living microbes down the drain.
Classification:
Explanation:
At a research lab, a scientist carelessly pours cultures of living microbes down the drain.
Classification :Bacterial pollution
Explanation: The living microbes are dangerous bacteria that can cause dangerous bacterial pollution which can cause disease and infections.
What are microbes?Microbe, is an organism of microscopic size that can exist as a single cell or as a colony of cells which are also called microorganisms. They live in water, soil and air. Some microbes are pathogenic others are non pathogenic.
The microbes can be grouped into five main types:
viruses bacteria archaeafungi protists.Microscopic organisms, including bacteria, fungi and viruses, can cause disease in plant and animals.. But there are trillions of microbes living in and on your body right now. Most of the bacteria are useful . In fact, they help you digest food, protect against infection and even maintain your reproductive health.
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Organisms exhibit different type of adoptions as a mean of survival.What type of adoptions do the caterpillar and the plant show in this interaction?
The adaptation in this interaction of the green plant and the caterpillar is an example of structural adaptation.
What is adaptation?The term adaptation has to do with the physical or the structural or even functional changes that is seen to occur in an organism so that the organism can be able to carry out its life activities very easily. We know that there are various kinds of habitat that the organism could be able to find itself and the organism must be able to have within it, the ways that would enable it to survive the harsh conditions of that particular or given environment.
In this case, a green caterpillar feeding on a green leaf. The green color of the caterpillar is an example of a adaptation to avoid predators, while the release of bioactive chemicals by the plant to protect itself from the insect’s attack is a adaptation.
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Missing parts;
Organisms exhibit different types of adaptations as a means of survival. What type of adaptations do the caterpillar and the plant show in this interaction?
a green caterpillar feeding on a green leaf
The green color of the caterpillar is an example of a adaptation to avoid predators, while the release of bioactive chemicals by the plant to protect itself from the insect’s attack is a adaptation.
an unknown microbe is grown on triple sugar iron. you observe the surface of the slant has changed to a dark red color. the butt of the slant is yellow. this result would be recorded as
Lactose is not fermented, but a little quantity of glucose is; this causes the oxygen-deficient butt to appear yellow (keep in mind that more media means more glucose), whereas the acid on the slant is oxidized by the organism into carbon dioxide and water, causing the slant to appear red (alkaline or neutral pH).
Triple sugar iron test: what is it?When you see the name of this test, Triple Sugar Iron Agar, you must keep in mind that it is a test that contains iron as well as three sugars (Lactose, Sucrose, and Glucose), and it also contains agar as a solidifying agent (TSI is a semi-solid media having slant and butt).
Lactose, Sucrose, and Glucose are present in Triple Sugar Iron Agar (TSI) in the proportions of 10:10:1 (i.e., 10 parts Lactose (1%), 10 parts Sucrose (1%) and 1 parts Glucose (0.1%)).
Triple Sugar Iron Agar Test Interpretation1) Lactose (or sucrose) fermentation results in the production of a significant amount of acid, which causes the phenol red indicator to turn yellow both in the butt and in the slant. Gases produced by some organisms cause bubbles and fissures to appear on the medium.
2) The oxygen-deficient butt will be yellow if lactose is not fermented but a tiny amount of glucose is (remember that butt has more glucose than slant, thus more media means more glucose), but on the slant the acid The organism will oxidize the (less acid as medium in slant is very little) to carbon dioxide and water, turning the slant red (alkaline or neutral pH).
3) The butt and the slant will both be crimson if neither lactose/sucrose nor glucose is fermented. The formation of ammonia from the oxidative deamination of amino acids might cause the slant to turn a deeper red-purple (more alkaline) (remember peoptone is a major constituent of TSI Agar).
4) The presence of ferrous sulfide, which is black, indicates the presence of H2S.
- Red/red: Nonfermentable glucose, lactose, and sucrose
- Red/yellow: Only fermentation of glucose
- Yellow/yellow: fermentor for glucose, lactose, and/or sucrose
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Which molecule, made by the light reactions in plants, could be used by cellular respiration in some bacteria?.
Oxygen and glucose are produced during photosynthesis and are used as the precursors for cellular respiration.
Carbon dioxide, water, and ATP are produced during cellular respiration, and these substances—along with sunlight—are the precursors for photosynthesis.
Energy is the capacity to carry out a task or generate heat. The energy of the system changes as a result of the rearrangement of atoms between different substances and the rupturing or formation of chemical bonds.
When energy is discharged from the system into the environment in the form of heat, the reaction is said to be exothermic.
Cells' mitochondria are where cellular respiration takes place. Carbohydrates (raw material) are mixed with oxygen taken in from the outside environment to release the chemical energy they contain. Additionally emitted are carbon dioxide and water vapor.
Therefore, cellular respiration is a chemical reaction that produces heat.
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which statement correctly explains how fertilization produces a diploid cell?
PLEASEEEE HELP :)))
hypothesize why there are many different cell types in the human body. Why might it be important that our cells are specialized for a specific function?
Answer:
read these carefully and you'll develop your answer
Explanation:
1. Explain what is meant by a specialised cell.
Specialised cells are cells designed to carry out a particular role in the body.
2. Stem cells can specialise.
2. How do stem cells become specialised?
Stem cells can divide and produce cells that have the potential to become other more specialized cell types or tissues.
3. What might happen if a stem cell does not differentiate properly?
“Many cell types once they have become completely specialised (terminally differentiated) have a limited capacity to produce new cells of the same type.”, if they don't differentiate properly, they will not be able to specialize in any field, will it have a tissue to reside in nor function.