Avery thought his new math teacher was cold and ineffective but it turns out that by the end of the year, he liked him. This is an example of the bad or wrong first impression. You might think that you know how a person is but once you get to know them more, you realize that they're not what you thought them to be.
the coloring of their body (green) allows them to adapt to areas that are green (leaves,trees,grass,etc.) which allows them to blend in.
hope that helps.
The answer is C for that question
Natural selection is rhe sirvival of the fittest. The fittest for the environment. If there is a sudden change in the environment say for example, flood or forest fire, etc. , species that once thrived may no longer have what it takes to survive in the changed environment. Other species might find it easier to thrive in the changed environment.