Blue eyes are recessive in humans if 20% of the population has blue eyes. What is the frequency of the heterozygous individuals in this population?

a. 0.50

b. 0.31

c. 0.55

d. 0.45

An effort to improve the genetic makeup of a population is known as

Which of the following is not a theory supporting global warming?

Why are there many alveoli in the lungs?

Which factor affects the same percentage of a population regardless of the population's density?

A raised fossil that has filled in the impression from a mold

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.