<span> C - This process is called natural selection. In a species, only the strongest ones survive and then go on to produce offspring and evolve. Having a certain fur colour could act as camouflage for the mice in the wild.
hope this helps.</span>
The correct options are as follows:
1. D.
<span>A clade refers to a group of organisms that are made up of evolutionary descendants that originated from a common ancestor. A clade that will survive a series of catastrophic events must be one that is made up of distantly related and diverse species. This is because, those species will have different type of adaptability capacity and will be able to adapt in different ways to the catastrophic events. Due to the differences in their ability to adapt, some of the specie will survive the catastrophic events even if others are wipe out.
2. B.
The mass extinction of one specie usually creates space for another new specie to survive. The new specie that survive the old one may possess the ability to adapt to the event that wipe out the former set of living organisms and thus, the new specie will be able to occupy and reproduce in their new space. Mass extinction is said to occur when the whole population of living organism living in an ecosystem are wipe out as a result of unfavorable conditions.
3. B.
Convergent evolution refers to the independent evolution of similar features in species that arise from different lineages. The species involved usually evolve these traits as a result of having to adapt to similar environments. Convergent evolution usually result in evolution of analogous structures, that is, structures that have similar forms or functions but which are not present in the last common ancestors of the species.
4. C.
In evolution, gradualism refers to theory that states that evolution occurs slowly and gradually, thus, large changes in evolution are actually product of small changes that occur over a long period of time. The theory of gradualism was originally proposed by James Hutton in 1795.
5. C.
Mass extinction refers to the wiping out of a a large number of species within a very short time. Mass extinction can occur as a result of severe unfavorable conditions that all the species in an ecosystem can not adapt to. An instance of this is a drastic decrease in global temperature after several massive volcanic eruptions.</span>
Fossils
Explanation:
Fossils are words used to describe the history of life in the geological past as indicated by the imprints or remains of living things.
Fossils are the preserved remains of dead and decayed organisms that have once lived. Their activities are also classified as fossils.
- Fossils generally tell us the history of life and the sequence of evolution of living organism.
- They presented a valuable source of information with regards with the nature of paleo-climatic conditions and the environment in times past.
- Fossils ranges from whole preservation of an organism to preserved hard parts.
- Some fossils are just traces and prints of the life activities of organisms.
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Answer:
The presence of moisture is the independent variable.
The earthworm behavior is the dependent variable.
Explanation:
In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.
