Which of these is not an example of intracellular communication?

A. DNA in a cell replicates

B. Heart cells contract together

C. Water regulation by a cell's central vacuole

D. Charged ions distributed across a plasma membrane

Which of the following is true of Clydesdale and Thoroughbred horses? A. They are different species and have different traits. B. They are the same species and have the same traits. C. They are the same species and have different traits. D.

Identify the two main conditions that must exist for an ecosystem to be self sustaining

How do the continental shelves and the continental slopes form

Why are bacteria needed in the nitrogen cycle? A) Other living things cannot use atmospheric nitrogen. B) Other living things cannot use the nitrogen in plants. C) Bacteria are the main nitrogen reservoir.

C3 fracture resulting in loss of sensation and inability to move arms and legs is known as what type of paralysis?

What does the client learn to deconstruct in constructivism?

Just like other magnets, the Earth has A. two positively charged magnetic poles. B. only one magnetic pole. C. two negatively charged magnetic poles. D. two opposite magnetic poles.

The most complex organ in the human body is the

Name 3 parts of a plant cell that are not found in an animal cell

A man with the autosomal recessive disorder phenylketonuria (PKU) and a woman without PKu heve a son named Peter, who does not have PKU.