If his sperm count is less than 20 million per millimeter, a man is considered

a. impotent. b. hormone intolerant. c. infertile. d. sterile.

Active continental margins are characterized by which of the following? A. No sediment accumulation B. Sparse earthquake activity C. Shallow coastal waters D. Deep-sea trenches E. Broad continental shelves

How does DNA in offspring produced by asexual reproduction compare to DNA in offspring produced by sexual reproduction

What particles make up the nucleus of an atom?

Anyone, even adults, can feel the influence of peer pressure. o True False

What did W. E. B. Du Bois criticize Booker T. Washington for? A. He criticized Washington's passive and cautious ways. B. He criticized Washington's aggressive and violent methods. C. He criticized Washington's wavering and changing views. D.

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.