Answer AND Explanation:
The variations that Darwin regarded as raw materials for the process of evolution have been traced to changes that occur at the gene level or the chromosome and these changes are called mutations. Organisms with beneficial mutations are able to pass them on to their offspring during reproduction. Transmission of such mutations through many generations could lead to the emergence of new species. The emergence of new species requires a long time and is also affected by the rate of mutations that a particular species undergoes. This leads to evolution.
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Answer:
an independent variable is a variable that we choose to change to see that happens. ( eg. the temperature when testing evaporation).
a dependent variable is the variable that we measure. ( so maybe how much water evaporates)
To avoid predators, animals often camouflage. It is an animal adaptation in order to protect themselves from predators. Adelie penguins' predators are white sharks and they have developed coloration similar to the white sharks. That way white sharks will hardly distinguish them from other sharks.