Randall and Rachel are brother and sister. Randall does not enjoy exercising, but Rachel can't get enough. Based on the information you know, which of the following statements is true?

Sponges can reproduce

The process by which sperm from one flowers pollen fertilizes the eggs in a flower of a different plant is

DNA is the hereditary molecule that determines hair color in humans. However, the DNA molecule itself is colorless. How does DNA determine the hair color of individuals?

A surgical puncture to aspirate fluid from the douglas cul-de-sac (the rectouterine pouch) is called

Two planets are orbiting a star. Planet A is closer to the star than Planet B. Which description explains the expected motion of Planets A and B?

A higher concentration of molecules cause a faster chemical reaction This is known as__.

Determine whether the statement is true or false, and why. "Only males can be carriers for x-linked recessive traits." A. False, it should read "Only males can be carriers for x-linked dominant traits." B.

What are two ways humans impact the carbon cycle?

In a standard monohybrid cross between purple-flowered and white-flowered peas, what fraction of the purple-flowered peas in the F2 generation would you expect to be true-breeding?

Definition of vascular tissue