Middle School Life Science › Explain how natural selection leads to an increase or decrease in the expression of certain traits
Which of the following is NOT an example of a structural adaptation?
After many thousands of years of tectonic activity, an island splits apart and separates into two smaller islands. In the process, two populations of the same lizard species become separated and eventually, they cannot interbreed. One population even developed a slightly darker coloration. What was the result of natural selection during this extended period of time?
Which example from the fossil record best represents that natural selection has been occurring over millions of years?
How does the process of natural selection influence the expression of specific traits?
A random mutation occurs in a tree frog population. The tree frog has a new set of alleles that cause it to develop more lightly colored camouflage than its counterparts. Which of the following will determine whether this lightly colored camouflage will be expressed more frequently in the population?
If a random mutation is favorable (meaning it helps the species survive) then what will happen to a population in which the mutation occurs?
What could you expect about the expression of a specific trait if it is found to be harmful?
Which of the following explains why natural selection acts on an organism's phenotype and not its genotype?
Which of the following best illustrates natural selection?
If a species of bird adapts to have a broader and shorter wingspan, this would be an example of __________.