What might happen in a tropical forest biome if the area received very little rain for a extended period of time

Answer:

The cell grows, matures and eventually copies its DNA during the interphase.

Interphase can be described as the phase of a cell cycle in which the cell spends most of its time. During the interphase the cell gets its required nutrients and it metabolizes these nutrients. The cell grows during this phase and carries out its normal functions. During this phase a cell gets prepared for mitosis or meiosis.

There are three stages of interphase: G1 phase, S phase and G2 phase.

Where a stream leaves a mountain range you’ll find a alluvial fan a wide, sloping deposit of sediment

Darwin's theory of Evolution by Natural Selection is not just a theory, because it can be testable. A hypothesis becomes a theory once it is supported by evidence (option C)

Charles Darwin described natural selection as an evolutionary phenomenon in which the fittest and strongest animal survives in nature, with the weakest animals dying first, greatly reducing the likelihood that they will have offspring. Therefore, the strongest are the ones that have offspring and pass on their most optimal traits so that these offspring are in turn more fit.  

Each organism has different characteristics, and when organisms of a species reproduce, the progeny inherit these characteristics. Those members of the population with characteristics that are less adapted to the environment will be less likely to survive. And those with better characteristics are more likely to survive. For example, a gazelle that is slower to run because of some defect will be less likely to survive because it is likely to be chased and caught by a carnivorous animal. And this hunter is less likely to catch up with another gazelle that is stronger and faster to escape. In turn, this stronger gazelle, by surviving, will be more likely to reproduce and leave equally strong offspring.

Therefore, the classic definition of natural selection establishes that the conditions of the environment can hinder or favor the survival and reproduction of species and this determines that they evolve to adapt more and more. Therefore, evolution is the set of changes in a population, through generations. This process has originated the diversity of species from a common ancestor. For this to happen, traits must be variable between individuals and be related to survival and must be inheritable.

On the other hand, it should be clarified that a theory is a body of knowledge that explains a phenomenon based on observation or reasoning.

The right answer is:

• C. A hypothesis does not become a theory until it is already supported by evidence: A hypothesis (an assumption made before any evidence or observation is obtained) does not become a theory until it is already supported by evidence.And as already stated, a theory is made after testing, with evidence. Then, evolution can be testable, analyzing the existing evidence. For example, the shared characteristics between species (which indicate that they were descended from a common ancestor) such as the arms of humans and the fins of whales which have the same common ancestor although they do not have the same function.

Let's explain why the other items are incorrect:

• A.  It does not rely on dependent variables, only independent variables: A dependent variable is an outcome or variable that depends on other variables while an independent variable is one that affects the outcome, and in turn is not affected by anything. So, both depedent and independent variables are used to explain Evolution and Natural Selection. For example, an independent variable could be the the availability of feed, while the dependent variable could be the amount of feed that the animals can incorporate. The more skilled the individuals are (hunting, climbing), the more food they can obtain.

• B. It has more evidence than a hypothesis, but less than a law: Darwin's theory is not a law because a law is a statement about an observed phenomenon, however it does not explain what causes it. Currently, there is evidence to explain how the evolution of species evolved.
• D. It is just a theory, it is equivalent to a guess: A theory is not just a guess is because as it was explained, it is supported by observations, studies and evidence.

So, Darwin's theory of Evolution by Natural Selection is the result of adaptations to the environment of organisms and can generate genetic mutations that lead to improvements in phenotypes and generate new species. And it is supported by scientific evidence by studying physiology, comparative anatomy between species, among other things.

Learn more about Evolution here: brainly.com/question/23544708

Answer: C

Explanation: Darwin’s theory of evolution is based on Natural Selection. Natural Selection can be defined as the ability of an organism to evolve based on its suitability to the environment through genetic traits that are inherited by offspring.

Darwin’s Theory is not just a theory because it is testable, and can be used to make logical future predictions.

An example of this is the evolution of man.

Answer:

human activity

Explanation:

The wetlands and the coral reefs have gradually been destroyed by the humans and their activity. The wetlands were the first to be under the human influence and getting destroyed, while the coral reefs have come to have similar destiny in the last century. The reasons for the destruction are different. The wetlands have in general been destroyed on purpose, be it because they were epicenter of diseases, for making more land for agriculture, or making more land for settlements. The coral reefs have not been destroyed on purpose, but the human activity has resulted in lot of pollution of the ocean waters, as well as changes in the climate, and the fragile corals can not adapt quickly enough to these changes, so they die out quickly.