Answer:
Isomers
Explanation:
Isomers. Isomers are compounds that contain the same number of atoms, i.e., they have the same empirical formula, but differ from each other by how the atoms are arranged. Examples of isomers with the formula C8H10 are ethyl benzene, m-xylene, p-xylene, and o-xylene.
What does a food web show?
A. how much energy gets transferred between trophic levels
B. the complex interactions and feeding relationships between organisms within an ecosystem
C. the cycle of organic materials in an ecosystem
PLEASE HELP
Answer:
B
Explanation:
The answer is B because A is an energy pyramid, and it cannot be C because a food web is not a cycle as it doesn't restart.
Which of the following describes lakes and ponds? A. separated into photic and aphotic zones of still water with large amount of vegetation and fish B. located between aquatic and terrestrial environments and reduces flooding and filters water A C. filled with running water and don't allow the collection of algae, and are home to small crustaceans D. collected salt water that is located by the coast and filled with calcified remains of cnidarians
Answer:
B.
Explanation:
Answer: A
Explanation:
Separated into photic and aphotic zones of still water with large amount of vegetation and fish
give the result of this study why can't the researcher draw a causal connection between behavior disorder and temperament
Answer:
El DSM- V lo define como un patrón repetitivo y persistente de comportamientos en los que no se respetan los derechos básicos de los otros, las normas, reglas sociales o leyes
Please help asap. I’ll mark brian list
In 1944, Oswald Avery, Colin Macleod, and Maclyn Mccarty revisited Griffith's experiment and concluded that the transforming material was pure DNA, not protein or RNA.
What is the significance of this experiment?The significance of this experiment is that it illustrates that the proteins were not the genetic material but DNA is the substance that causes bacterial transformations.
All three investigators found that DNA extracted from a virulent strain of the bacterium Streptococcus pneumonia also known as Pneumococcus genetically transformed an avirulent strain of the organism into a virulent form.
Therefore, it is well described above.
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¿What is Bacteria?
..
Answer:
bacteria are mostly free-living organisms often consisting of one biological cell. This means they are unicellular organisms, unlike humans, who are composed of millions of cells. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, and the deep biosphere of Earth's crust.
Hope this helps!
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¿What is Bacteria?
They are the primitive beings that inhabit the planet earth, prokaryotic microorganisms, not visible to the nak-ed eye.
They lack organelles and a nuclear membrane, their genetic material is scattered in the cytoplasm.
There are 3 types of Bacteria which are :-
BacilliCoconutsHelicalI hope I've helped : )
Scientists have studied, in detail, the evolution of the peppered moth, Biston betularia, over the last two hundred years. The peppered moths rest on tree trunks and
are a tempting treat for birds in the area. In the mid-1800s the trees in their England habitat were covered with lichens, which are a light, grayish-green color. Although
color variations occurred, the vast majority of the moths were light-colored. Because their light coloration effectively camouflaged them against the lichens-covered
trees, they were not as easily seen by birds as darker colored moths. The light colored moths flourished.
The environment changed, as the Industrial Revolution progressed. By 1900, the lichens had died and trees were coated with soot due to industrial pollution. The
lighter colored moths were no longer "hidden" in their environment, and in fact, were easily seen by their predators. Their numbers dwindled. At the same time, the
darker-colored moths flourished because of their ability to hide on the soot-covered trees.
a. What type of selection is this?
b. What is the agent of selection?
c. What alleles were favored in the clean environment? The polluted environment?
From the knowledge of natural selection it is possible to say that:
A) Natural Selection
B) Industrial Pollution
C) In the clean environment the favored allel was the white winged moth. In the polluted environment the dark winged moth was favored.
What is a natural selection?
Natural selection is the evolutionary mechanism proposed by Charles Darwin, who stated that the environment acts as a selector of characteristics, perpetuating the organisms best able to survive in a given place.
A) moths are being selected because they are under pressure of Natural Selection. Selection is a composite of all the forces that cause differential survival and differential reproduction among genetic variants. Natural selection it is the machine which drives evolution.
B) The agent of selection was Industrial Pollution. Before industrialization , there were more white winged moths on trees than dark winged or melanised moths. But after industrialisation , there were more dark winged moths in the same area. The proportion was reversed.
C) In the clean environment the favored allel was the white winged moth. In the polluted environment the dark winged moth was favored. The area where industrialisation did not occur, the count of melanic moths was low. The area where industrialisation occured ,dark colored moths survived as they were able to camouflage themselves , with the tree trunks that had become dark due to industrial smoke and soot.
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causes of sickle cell anamia
Match the steps in the cell cycle in the correct order
1.
final preparations for division
2.
chromosomes uncoil and nucleus reforms
3.
chromosomes condense
4.
chromosomes line up
5.
chromosomes get pulled apart
6.
cell growth
7.
the cytoplasm and organelles divide, and now there are two identical cells
8.
DNA replication
a.
S
b.
anaphase
c.
telophase
d.
metaphase
e.
G1
f.
cytokinesis
g.
prophase
h.
G2
Answer:
1. Chromosomes line up - metaphase
2. Cell growth - G1
3. Final preparations for division - G2
4. Chromosomes get pulled apart - anaphase
5. DNA replication - S
6. Chromosomes condense - prophase
7. Chromosomes uncoil and nucleus reforms - telophase
8. The cytoplasm and organelles divide, and now there are two identical cells - cytokinesis
Explanation:
There are four primary phases, or stages, in the cell cycle, which is a systematic process. Each stage has a goal that has to be achieved before moving on to the next. G1, S, G2, and mitosis are the stages.
There is growth during the G1 phase. A lot of protein is produced and water is pumped in, increasing the volume of the cell. The DNA is also examined at this time to see whether there has been any damage. The G1 phase precedes the S phase, therefore before going into S phase, the cell must make sure it has enough energy reserves.
The cell duplicates its DNA during the synthesis phase, also known as the S phase. DNA content doubles due to the duplication of all chromosomes. The compact state of DNA is created by proteins, which do not exist in and of themselves. Therefore, in order to ensure that the new DNA is properly packed when DNA is replicated, new packaging proteins must be produced. Histones are the proteins that house DNA. The production of new DNA is closely linked to the production of new histones.
A cell multiplies its organelles during the G2 phase. Right before the cells divide into two distinct cells during mitosis, the G2 phase occurs. There must be distinct functioning organelles in each daughter cell. Organelles like the golgi and endoplasmic reticulum are linked networks of sizable membrane pouches that may change size. Other organelles, including mitochondria and chloroplasts, are separate structures that must separate similarly to how cells do.
The process of physically dividing a cell into two daughter cells is called mitosis. Prophase, metaphase, anaphase, and telophase are its four basic stages. The nuclear membrane deteriorates as the chromosomes thicken during prophase. The center of the cell's chromosomes align during metaphase. One chromosome splits in half during anaphase, sending one half to either side. The telophase is characterized by the pinching together of the cell's centre to form two separate cells.
How is a hydrolysis reaction the opposite of a condensation reaction?
Condensation processes include the formation of bonds between molecules and their combining, with the consequent loss of a water molecule. Since a chemical bond is being broken by the addition of water and frequently with the help of an enzyme that catalyzes the reaction, hydrolysis is related with bond breaking.
A hydrolysis reaction is the opposite of a condensation reaction in terms of the chemical process involved. In a condensation reaction, two or more smaller molecules combine to form a larger molecule, releasing a water molecule as a byproduct.
This process is also known as dehydration synthesis because it removes water to form a bond between molecules.
On the other hand, in a hydrolysis reaction, a larger molecule is broken down into smaller molecules by the addition of a water molecule.
The water molecule is split into its components, with a hydroxyl group (-OH) attaching to one part of the molecule and a hydrogen ion (H+) attaching to the other part, effectively breaking the bond between the two subunits.
In summary, a condensation reaction builds larger molecules by removing water, while a hydrolysis reaction breaks down larger molecules by adding water.
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Whats the correct answer answer ASAP for brainlist
What causes the "heat island" effect?
a. heat produced from a large number of people
b. the materials used in building cities retain heat
C. the large amount of reflected light from glass windows
d. all of the above
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. The materials used in building cities retain heat
Explanation:
The metropolitan region where the heat island effect is most pronounced is much warmer than the surrounding, natural, rural lands. The materials used in building, along with energy emissions from industry and transportation (cars), are to blame for the effect. For instance, because asphalt is impermeable, heat is reflected back into the air rather of being transferred to the ground like it does by flora and trees. Typically, heat islands are 2 to 6 degrees F warmer. Urban areas stay warm in the nights while the nearby rural regions drop down; the difference can be as high as 20 degrees F.
Communities may experience a rise in heat-related sickness and death, air pollution, air conditioning expenses, and water quality during the summer months due to heat islands.
How is the Douglas fir doing?
The Douglas fir adapted to enable its survival in the taiga biome due to waxy needles.
What is Douglas fir?Douglas fir may be defined as any type of a genus of tall evergreen timber trees of the pine family having stout bark, pitchy timber, and drooping cones with expanding branching.
Douglas-fir has elongate, narrow, and waxy needle-shaped leaves. The presence of waxy leaves precludes the thrashing of water through the process of transpiration and also controls freezing and leaves drying out.
The complete question is as follows:
How has the Douglas-fir adapted to enable its survival in the taiga biome?
low growingperennialwaxy needlessurvive on limited nutrientsTherefore, the correct option is C, i.e. waxy needles.
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A scientist presents the findings from her lastest research at a specific conference. Several scientist in the audience question her analysis.
As per the given scenario, one should accept the criticism as fact and change the conclusions. The correct option is d.
What is criticism?Criticism is the formation of an opinion about the positive and negative characteristics of someone or something. Criticism can range from impromptu remarks to a detailed written response.
The complete question is:
A scientist presents the findings from her latest research at a scientific conference. Several scientists in the audience question her analysis. Which of the following is the best response to the criticism?
A. Review the data analysis in light of the criticism
B. Refuse to speak for the remainder of the conference
C. Assume that the criticism is inaccurate and ignore it
D. Accept the criticism as fact and change the conclusions
As per the given scenario, one should accept the criticism as fact and change the conclusions.
Thus, the correct option is d.
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Craters on the Moon were created by:
equipment from human explorations.
satellites.
meteorites.
comets.
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If you look at the diagram, there is no pathway for sedimentary rock to become igneous rock without first being metamorphosed. Why do you think this is the case?
Sedimentary rocks cannot directly form igneous rocks because they need to undergo changes under intense heat and pressure.
What are sedimentary and igneous rocks?Sedimentary rocks are rocks which are formed from the deposition of organic materials which accumulate at the earth's surface.
Igneous rocks are rocks which are formed from the cooling of molten magma.
Sedimentary rocks cannot directly form igneous rocks because they need to undergo changes under intense heat and pressure.
In conclusion, sedimentary rocks must undergo metamorphosis to form igneous rocks.
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Which liquid would be the most difficult to raise or lower the temperature of?
OA. One with a low density
OB. One with a high density
C. One with a low heat capacity
OD. One with a high heat capacity
SUSMIT
Answer:
OD
Explanation:
Since it has a high heat capacitive it will be able to store much more energy and therefore will not be easy to raise or lower temperature
How is the atmospheric oxygen that is taken in by living things for respiration replaced?
Explanation:
A) After living things use oxygen for respiration, they exhale the oxygen back to the atmosphere.
B) Photosynthesis uses the carbon dioxide that is exhaled by living things to make oxygen.
C) Weathering releases oxygen that is locked in rocks due to sedimentation.
D) Oxygen that is dissolved in water such as oceans is released.
which best describes the structure o a DNA molecule
Explanation:
DNA is made up of repeating units or chains are arranged in the form of a double helix and are held together by hydrogen bonds
Identify the star that is the coolest.
A -white dwarf
B- red giant
C- blue giant
D- yellow dwarf
Answer:
A.
Explanation:
cool . . this that correct.
Identify three ways humans contribute to extinction
1. Habitat destruction, harvesting, and pollution
2. Habitat destruction, reclamation, reproduction
3. Captive breeding programs, game preserves, zoos
4. All of the above
Answer: Human activities that influence the extinction and endangerment of wild species fall into a number of categories: (1) unsustainable hunting and harvesting that cause mortality at rates that exceed recruitment of new individuals, (2) land use practices like deforestation, urban and suburban development, agricultural cultivation, and water management projects that encroach upon and/or destroy natural habitat, (3) intentional or unintentional introduction of destructive diseases
Explanation:
Genetic modification is used to develop plant and animal species that have new traits. If genetically modified plants are introduced in a natural habitat, they may act in a manner similar to an invasive species. What could be the best solution to prevent them from becoming an invasive species?
a.
Use pest control
b.
Plant more native trees.
c.
Develop plants that are unable to reproduce.
d.
Use more fertilizer to promote the growth of genetically modified plants.
The best solution to prevent them from becoming an invasive species is to develop plants that are unable to reproduce. Thus, the correct option is C.
What are Invasive species?Invasive species may be defined as the group of organisms that are not indigenous, or native, to a particular area.
If such genetically modified plants have the characteristics of reproduction, then they produce offspring which are extremely different from the native population. This in the future leads to the process of speciation if can not be regulated in a limited manner.
Therefore, the correct option for this question is C.
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A biologist studied a population of squirrels for 15 years. During that time, the population was never fewer than 30 squirrels and never more than 45. Her data showed that over half of the squirrels born did not survive to reproduce, because of competition for food and predation. In a single generation, 90% of the squirrels that were born lived to reproduce, and the population increased to 80. Which inference(s) about this population might be true?
A) The amount of available food may have increased.
B) The number of predators may have decreased.
C) The squirrels of subsequent generations should show greater levels of genetic variation than previous generations, because squirrels that would not have survived in the past will now survive.
As per the given scenario, the squirrels of subsequent generations should show greater levels of genetic variation than previous generations, because squirrels that would not have survived in the past will now survive. The correct option is C.
What is natural selection?Natural selection is an evolutionary mechanism. Organisms that are better adapted to their surroundings are more likely to survive and pass on the genes that helped them thrive. Species change and diverge as a result of this process.
As per the given scenario, the squirrels of subsequent generations should show greater levels of genetic variation than previous generations.
It is because squirrels that would not have survived in the past will now survive as the new generation have better adaptability than the previous one due to natural selection.
Thus, the correct option is C.
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What if the surface of. A bacteria cell was not very antigenic. What would this mean for the host
Answer:
It would be much easier for the immune system to eradicate the bacteria
which statement describes two organ system working together to make an aimal run away from danger
Answer:
The nervous system sends signals that cause the adrenal glands to release hormones. This statement describes two organ systems working together to make an animal run away from danger
How do adrenal glands and nervous system work together?
The pituitary and adrenal glands create hormones that govern growth, stress, sexual function, and chemical equilibrium in the body.
The hormones adrenaline and norepinephrine, which are responsible for human stress reactions, are produced by the adrenal glands.
Catecholamines are adrenal medulla hormones that also act as traditional neurotransmitters in the autonomic nervous system.
The adrenal medulla is neural tissue that has been changed, and its activity is controlled by a direct neural input.
As a result, the medulla works similarly to a sympathetic ganglion.
Explanation:
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Identifying Conditions for Natural Selection Complete the sentences to identify the conditions that are necessary for natural selection. The environment needs to change. In this lab, the of the light was the change to the environment. Populations must have some Organisms must have a specific the majority of the survivors were light red. variation. In the bean population, the color of the beans varies. in order to survive and reproduce. During the period of red light pollution, ✓ Done Identifying Conditions for Natural Selection Complete the sentences to identify the conditions that are necessary for natural selection . The environment needs to change . In this lab , the of the light was the change to the environment . Populations must have some Organisms must have a specific the majority of the survivors were light red . variation . In the bean population , the color of the beans varies . in order to survive and reproduce . During the period of red light pollution , ✓ Done
Color, Genetic & Trait is the correct answer.
Complete the sentences to identify the conditions that are necessary for natural selection?The environment needs to change. In this lab, the color of light was the change to the environment.
Populations must have some genetic variation. In the bean population, the color of the beans varies.
Organisms must have a specific trait in order to survive and reproduce. During the period of red light pollution, the majority of the survivors were light red.
Thus, Color, Genetic & Trait is the correct answer.
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Answer:
color genetic and trait
Explanation:
i read the book
which of the following traits is most likely to be a useful adaptation? OA. White fur in a field mouse that hides among dried leaves and grasses OB. Structures within a cactus needle that decrease the amount of water that the leaf will lose to the environment OC. Red coloring in an oak leaf, decreasing the amount of sunlight that the leaf will absorb OD. Cells in a finch's eye that allow the finch to see tiny color variations in seeds and nuts ich of the following traits is most likely to be a useful adaptation ? OA . White fur in a field mouse that hides among dried leaves and grasses OB . Structures within a cactus needle that decrease the amount of water that the leaf will lose to the environment OC . Red coloring in an oak leaf , decreasing the amount of sunlight that the leaf will absorb OD . Cells in a finch's eye that allow the finch to see tiny color variations in seeds and nuts
If a population doubles in the course of 100 years, its growth rate would be approximately ________%.
Answer:
The population increases at a rate of approx. 0.70% per year.
Explanation:
The population (P) as a function of time (t) is as follows:
[tex]P = P_0(1 + i)^t.[/tex]
Given that the population doubles in 100 years, let's calculate [tex]i[/tex]:
[tex]2P_0 = P_0(1+i)^{100}\\\\(1+i)^{100} = 2\\\\1 + i = 2^{\frac{1}{100}}\\\\1 + i = 1.0069556\\\\i = 0.0069556[/tex]≅ [tex]0.70[/tex]%
Lipase is produced in structure labeled and it functions to digest lipids in the structure labeled
According to the research, lipase is produced in the pancreas and it functions to digest lipids.
What is lipase?It is an enzyme secreted by the pancreas, involved in fat digestion and fat absorption.
That is, it catalyzes the hydrolysis of the steric bonds of fatty acids and glycerol of triglycerides and phospholipids.
Therefore, we can conclude that according to the research, lipase is produced in the pancreas and it functions to digest lipids.
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Prokaryotic organisms/cells have which of the following characteristics?
A. division by mitosis
B. nucleus
C. cellular membrane
D. multicellular
E. Call of the choices are correct
Answer:
E) All of the choices are correct.
what effect does the increased temperature have on the ecology and distribution of plant species
Hello!
Higher temperature affects plants’ growth especially in temperate crops like wheat. It reduces the growth of shoots and roots in plants. This, in turn, results in a substantial reduction in the overall height of the plant. High air temperature can lead to dehydration and scorched leaves.
In general, the increase of temperature would cause a damage in ecology of a certain area as most plants would not be able to adapt to this change. This, in turn, will affect the distribution of such plant species as they would die off unless placed in an environment with more favorable conditions.
The impact of increased temperature on plant ecology and distribution can lead to shifts in species ranges, altered species interactions, changes in ecosystem functions, and challenges in adapting to new climatic conditions.
Some of the key impacts are as follows:
The shift in Distribution Range: As temperatures rise, certain plant species may expand their distribution ranges towards higher latitudes and altitudes. Altered Phenology: Temperature changes can influence the timing of key ecological events in plants, such as flowering, fruiting, and leafing. Warmer temperatures may lead to earlier flowering or leaf emergence, which could disrupt synchronization with pollinators.Species Interactions: If the timing of flowering or fruiting shifts, some plant-animal interactions may be negatively impacted, affecting both plants and the species they interact with.Increased Invasive Species: Warmer temperatures can facilitate the spread of invasive plant species into new areas. These invasive species can outcompete native plants, leading to changes in community composition and potentially reducing biodiversity.Changes in Productivity: Temperature influences photosynthesis and plant growth rates. Increased temperatures may lead to higher productivity in some plant species under certain conditions, while in others, it may cause heat stress and reduced growth.Impact on Ecosystem Services: Changes in plant species distribution can have cascading effects on ecosystem services, such as carbon sequestration, water regulation, and soil erosion control. Habitat Loss and Fragmentation: Temperature-induced shifts in plant distribution may result in the loss or fragmentation of suitable habitats for certain species.Thus, increased temperature's effects on plant ecology and distribution can modify the ranges of various species, alter how they interact with one another, alter how ecosystems work, and make it more difficult for them to adapt to changing climatic conditions.
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