Due to differences in mating times, two sub-populations of frogs form into separate species, even though they occupy the same pond. This overall process is known as sympatric speciation.
What is sympatric speciation?Sympatric speciation refers to the divergence of individuals in a species to produce two or more different species in the same geographic location. Generally, sympatric speciation is due to the emergence of reproductive barriers between individuals in the same population.
Therefore, we can conclude that sympatric speciation may lead to the use of the same habitat by two different but evolutionary-related species.
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Describe each fundamental characteristic of science in your own words.
Observable:
Testable:
Replicable:
Reliable:
Flexible:
heelllppp
Science is based on the observation of phenomena of the real world, testable to be verifiable, replicable and reliable because conducts equal outcomes and flexible due to new evidence may lead to change.
What is science?The word science is a broad term that refers to all body of knowledge based on empirical evidence, which can be tested to be verified and replicated in different experiments. The scientific results must be reliable because it allows generating theories and the development of new hypotheses.
Therefore, we can conclude that science is based on verifiable and replicable facts in experimental procedures. The scientific results are flexible because new evidence may modify old theories.
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If the gametes produced by a given organism contain 6 chromosomes, how many chromosomes are found in that organism's body cells?
3
6
12
10
Answer:
12
Explanation:
I think its 12 because gametes are haploid which means they have a single set of chromosomes and body cells are diploid, which means they have double.
During fertilization the two haploid gametes join creating a diploid zygote which multiplies by mitosis into more diploid cells
Proteins are made by cells based on the dna sequences found in genes. Which cell organelle acts as a distribution center by creating vacuoles to transport proteins to different locations around the cell?.
Endoplasmic reticulum
Endoplasmic reticulum (ER) is found in both plant and animal's cell.
It is located close to the nuclear membrane and extend throught the cytoplasm. It is said to be the largest organellethe cell
ER is responsible for a number of functions including protein synthesis and lipid metabolism
It also produce vacuoles that transfer protein from the site of production to other parts of the cell.
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Why water and air are compounds while carbon and gold are elements
what is the smooth ribosome in your own words
During chemiosmosis, hydrogen ions accumulate in the ______ of the mitochondrion to create a large electrochemical gradient for aerobic cellular respiration.
Answer:
I believe it's the Thylakoid compartment, I would still try to get some other opinions on it but I'm like 90% sure especially if it's something you've been hearing it a lot in class
9. Circle the letter of each sentence that describes a change in velocity.
a. A moving object gains speed.
b. A moving object changes direction.
A moving obiect moves in a straight line at a constant speed.
Sentence that describes a change in velocity are a moving object gains speed and a moving object changes direction.
What term best expresses an object's change in direction or velocity?Acceleration is that rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates. Regardless of whether the speed is constant, motion on a circle accelerates because the direction is always shifting.
The primary indicator of both an object's position and speed is its velocity. It is the distance how an object travels in one unit of time. The displacement of the objects in one unit of time is the definition of velocity.
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describe one method for identifying the distribution of organelles within the density gradient fractions. in other words, how might you determine which fractions are enriched for p. falciparum mitochondria? golgi bodies? digestive vacuoles?
Cellular components are divided using a process called cell fractionation that keeps each component's unique functions intact.
Which technique is used for protein fractionation?Chromatographic and electrophoretic techniques can also be used to separate proteins into different fractions. By using adsorption chromatography and/or gel filtration, which separates proteins based on their size and shape, different proteins can be separated.
The best technique for isolating organelles is centrifugation. Other methods that take advantage of different physical (such as electrical charge for free flow electrophoresis) or biological (such as ligand affinity for immunoisolation) characteristics have also been used to study complex organelles and membranes.
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Which of the following is not part of the chemical level of organization?
macromolecules
elements
organelles
atoms
Answer:
atoms
Explanation:
Atoms and molecules are part of the chemical level of organization of the human body.
In order to maintain blood sugar homeostasis, your body does the following things. After eating a meal, what is the correct order in which they occur?
1) The level of glucose in the body decreases. Search
2) The body digests and absorbs food molecules.
3) The pancreas releases insulin, which triggers cells to take in more glucose.
4) The level of glucose in the blood increases.
A. 1,2,3,4
B. 2, 1,4,3
C. 3,1,2,4
D. 2,4,3,1
Which kind of dormancy happens when a plant goes dormant after conditions are unfavorable?
(A) consequential dormancy
(B) photoperiod dormancy
(C) seasonal dormancy
(D) predictive dormancy
Answer:
(A) consequential dormancy
Explanation:
how does your body use the protein once it has been ingested? consider the following statements and select the correct ones regarding protein use. select all that apply.
When a protein source reaches your stomach, hydrochloric acid and proteases enzymes convert it into smaller chains of amino acids.
Peptides, that are broken down by proteases, are also what link amino acids. These smaller chains of amino acids go from your tummy to your small bowel.
What happens to the body when it uses protein as a source of energy?However, protein is broken down into ketone bodies to be utilised for energy if the body is not acquiring enough calories from other foods or from the fat stored in the body. The body breaks down excess protein and stores its constituent parts as fat if it is ingested.
Consumed protein is converted to amino acids by the body and then absorbed. It is utilised in the development of muscles and organs, the production of hormones and antibodies, the storage of fat, and the production of energy.
The small intestine is where protein digestion finishes after starting in the stomach. A stomach enzyme called pepsin starts the breakdown of proteins.
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I do this like a math problem right?? just multiply? if not please tell me the answer
Answer:
Yup!
4.3 times 4.3 times 4.3 = 79.507
Explanation:
Hope it helps! =D
if a medical researcher wanted to prevent communication between cells in order to cure a disease or prevent a malady, how might they achieve that? propose a method that could be used to stop a signal transmission from cell to cell.
Increase ligand production and amplify receptor production and ingest a pharmaceutical form of a ligand.
What are the cells?The corresponding value of all living things are cells. There are numerous billions of cells inside a human body. They give the body structure, reabsorb from meals, turn it into power, and carry out specific functions.
What materials make up cells?Cells are made of water, metal salts, and carbon-based (organic) molecules. Cells are mostly composed of water molecules, which account for at least 70% of their mass. Because of this, knowing the interplay among water and other cell components is essential.
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Could someone do theses for me?
The answers include the following:
Water moves through the hydrological cycle by the sun first heating up the water bodies and plants which results in evaporation and transpiration respectively.Carbon moves through the carbon cycle by photosynthesis in which plants produce food.What is Photosynthesis?This is the process in which green plants manufacture their food in the presence of sunlight and ensures carbon is moved in the carbon cycle.
Plants produce food such as glucose which contains carbon and animals take in oxygen and breathe out carbon dioxide via respiration .It also moves through the cycle as a result of combustion of fossil fuels such as coal etc.
Water moves through the hydrological cycle by the sun first heating up the water bodies and plants which results in evaporation and transpiration respectively. The vapor is then condensed to form clouds and then precipitation occurs which results in rain etc.
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Which is the process of data gathering that uses instruments on satellites aircraft’s or ships?
Answer: Remote Sensing
Explanation: The process of gathering data about Earth using instruments mounted on satellites, airplanes, or ships is called remote sensing. Landsat satellites record reflected wavelengths of visible light and infrared radiation from Earth's surface, and then computers convert the information into digital images.
A scientist observes an increase in oxygen levels following a volcanic eruption. Explain the sequence of events that makes this possible and identify which of Earth’s spheres are being affected at each step. Your answer should include changes to at least two spheres.
Volcanic eruptions are the expulsion of magma and gases from the interior to the exterior of the Earth. They are caused by plate interaction in the crust and changes in magma and pressure in the mantle.
What are volcanic eruptions?
A volcanic eruption is an expulsion of material rising from the Earth's interior toward the surface. It is an event that occurs when hot magma generated in the Earth's interior rises along the volcano, together with gases that increase the pressure until it emerges to the exterior.
Volcanic eruptions are related to tectonic plate movements. These plates interact and produce new magma by melting solid material. These interactions produce changes in tectonic plates, magma movements, and pressure in the Earth's interior, which is directed to the cortex -the outermost layer-.
The elevated temperatures, and the increase in pressure and magma changes, make it rise toward the surface moving along the volcano until emerging to the exterior. This is how the Erth interior and exterior pressures are equilibrated again.
Let us remember that,
The crust is the most external layer placed upon the mantle and divided into many plates. This layer is part of the lithosphere.The mantle is the second layer of the Earth. It is composed of hot and dense rocky material capable of flowing. Convection currents occur in this layer, rising hot melted material from the deepest region and sinking cold solid material from the surface. This layer composes the mesosphere and the asthenosphere.
Volcanic eruptions increase gases concentration in the exterior, and is a natural cause of atmospheric pollution.
Event Affected sphere
Plate movements crust - lithosphere
Magma changes, mantle - athenosphere
pressure increase
and rising material
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which kind of molecule is used by organisms to store and transmit genetic material
a. nucleic acid
b. carbohydrate
c. protein
d. lipid
The kind of molecule that is used by organisms to store and transmit genetic material is called the nucleic acid. That is option A.
What is nucleic acid?A nuclei acid is defined as the macromolecule that is found within a living cells that has the ability to transfer the genetic makeup of the organism to its offspring.
The components of the nucleic acid include the following:
Purine or a pyrimidine, A pentose (five carbon) sugar and One to three phosphate groups.The major functions of the nucleic acid include the following:
They aid in transfer of genetic materials to offsprings.Sources of energy in the form of ATP, physiological signaling mediators, secondary messengers, and allosteric enzyme effectors.Learn more about genetic materials here:
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How would you describe the surface of a cell membrane?
The cell membrane also called the plasma membrane is found in all cells and separates the interior of the cell from the external environment. The cell membrane consists of a semi-permeable lipid bilayer.
Cell membranes regulate the transport of substances in and out of cells. The cell surface structure can be viewed as a three-layered structure with the central plasma membrane having certain macromolecular components attached to the outside exoskeleton and other components to the inside membrane cell skeleton.
The outer covering of eukaryotic cells is called the plasma membrane. This membrane is responsible for isolating and protecting the cell from the environment and is mainly composed of a bilayer of molecules such as proteins lipids, and fats. Cell membranes are made up of proteins and lipids. This is because it is mainly made up of lipids. Only certain substances can penetrate. Phospholipids are the most abundant lipid type in membranes.
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Give two reasons why and engineer should have more than one idea when brainstorming possible solutions
Answer:
because it's better to have more than one answer first ok second and supports your first answer
Explain what a keystone species is and why they are essential to a particular ecosystem. How do keystone species
factor in the overall food web of that ecosystem?
A keystone species is an organism that enables outline a whole ecosystem. By retaining populations of mussels and barnacles in check, this sea famous person enables make sure healthful populations of seaweeds and the groups that feed on them—sea urchins, sea snails, limpets, and bivalves.
A keystone species exerts top-down impact on decrease trophic degrees and forestalls species at decrease trophic degrees from monopolizing crucial resources, which includes opposition for area or key manufacturer meals sources. This paper represented a watershed withinside the description of ecological relationships among species.
Keystone species preserve collectively the complicated internet of relationships in an ecosystem. They may be animals, plant life or microorganisms. Examples of keystone species consist of starfish, sea otters, wolves and elephants.
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the creation, modification, and shipping of proteins that are released from the cell happens in this/these organelle(s) found in large quantities in hormone and enzyme producing cells of the pancreas.
The creation, modification, and shipping of proteins that are released from the cell happens in Rough Endoplasmic Reticulum (RER) and Golgi Apparatus organelle(s) found in large quantities in hormone and enzyme-producing cells of the pancreas.
Rough Endoplasmic Reticulum (RER) are have ribosomes attached to their outer membrane. These ribosomes are referred to as the protein manufacturing place of a cell. The ribosomes are the site where tRNA brings amino acids to code with the mRNA so that proteins can be produced. Hence, the creation of proteins occurs in the Rough Endoplasmic Reticulum (RER) of a cell.
The proteins, after creation, are sent to the Golgi apparatus which carry out the function of modification and transport of proteins. Without post-translational modifications, a protein will not be able to travel outside of the cell.
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The South American song is similar to songs from Africa because . . .
Describe the following levels of protein structure including the types of bonds that are
involved:
a. Primary
b. Secondary
c. Tertiary and Quaternary
The levels of protein structure including the types of bonds that are involved are:
a. Primary - peptide bonds.
b. Secondary - hydrogen bonds
c. Tertiary and Quaternary - Hydrogen bonds, covalent bonds and hydrophobic interactions.
What are the levels of protein structure about?Primary Structure: A protein's distinctive and ordered amino acid sequence is known as its primary structure. It describes the order in which amino acids are added to a polypeptide as it develops during translation. There are essentially an endless number of fundamental sequences with 20 distinct amino acids.
Secondary Structure - It is one where there is a polypeptide chain's that consistent local patterns of coils or folds.
Tertiary Structure : It has a polypeptide's general three-dimensional form as a result of interactions between the R groups of the amino acids that make up the chain.
Lastly, Quaternary Building: It is the form that is produced when two or more polypeptide subunits come together.
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Which of the following is about chromosome pair number 1 till chromosome pair number 22?
The first 22 pairs of chromosomes are called autosomes.
By international convention, human autosomes, or non-sex chromosomes are numbered in descending order of size from 1 to 22. The exceptions are chromosomes 21 and 22 the former of which is actually the smallest autosome. Sex chromosomes are usually placed at the end of the cardiogram. Twenty-two of these pairs, called autosomes, look the same in males and females.
In the 23rd pair, the sex chromosomes differ between males and females. A female has two copies of her x chromosome, while a male has one of her x chromosome and one of her Y chromosome. The 22 autosomes are numbered by size. Chromosome 1 probably contains 2,000 to 2,100 genes that give instructions for making proteins. These proteins perform different functions in the body. Chromosome 22 contains perhaps 500 to 600 genes that give the instructions for making proteins. These proteins perform different functions in the body.
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What other fields, besides medicine, currently use gene editing?
Answer:
Cancer research
Cardiovascular disease
Metabolic diseases
Neurodegenerative diseases
Viral diseases
Hereditary eye diseases
Why does a food like a marshmallow have so little energy?
Answer:
Sugar does not provide a sufficient amount of calories for the body.
Explanation:
A growth disfunction in childhood
can sometimes mean a problem
or disease associated with a
particular gland. Name the gland
that is likely to be responsible for
a growth problem in childhood.
Answer: the pituitary gland
Explanation: The condition occurs if the pituitary gland makes too little growth hormone. It can be also the result of genetic defects, severe brain injury or being born without a pituitary gland.
the end‑replication problem (telomere problem) exists in eukaryotic chromosomes and is characterized by the chromosomes shortening with each round of dna replication.
Each replication cycle results in an incomplete replication of the DNA near the extreme end of the chromosome, gradually shrinking the chromosome.
What is the root cause of the eukaryotic chromosome end replication problem?Eukaryotes have linear, rod-shaped chromosomes that have ends as opposed to bacteria, which have circular chromosomes. DNA replication is difficult as a result of these ends. Each replication cycle results in an incomplete replication of the DNA near the extreme end of the chromosome, gradually shrinking the chromosome.
What specifically is the replication issue at the telomere end?Telomeres shorten as a result of regular DNA polymerases' incomplete copying of linear DNA molecules during cell division. The end replication problem is the name given to this [6]. The process of resection and fill-in that occurs during the synthesis of the telomere leading-strand is mostly to blame for this.
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What is feedback?
A) a way in which part of a system's output is decreased
B) a way in which part of a system's output is removed from the system's input
C) a way in which part of a system's output is increased
D) a way in which part of a system's output enters back into the system as input