Which factor below would be least likely to cause a mutation in the cells of an organism.

Select one:

a. sound wave

b. radiation

c. smoking

d. chemical pollution

Which is the smallest functional unit of the nervous system?

In what phase to replicates chromosomes finish moving towards the poles?

Which of these statements best describes a similarity between respiration and diffusion?

Cystic fibrosis affects about 200,000 people in the united states. a. True b. False

What is the electron transport chain and where is it located?

At end of telophase, what must occur

Which of the following is NOT true about spongy bone? A. It is less dencse than compact bone. B. It is organized into structures that resemble a bridge's supporting girders. C. It is soft and spongy. D. It adds strength to bone without adding mass.

Months after last taking a drug, a former drug abuser still produces very little serotonin. the person is depressed and anxious and has great difficulty remembering new material. most likely, the abused drug-if it was a single drug-was:

Taylor's twenty-third pair of chromosomes is xx. taylor is

Which species concept defines a species as a group of organisms that are able to reproduce successfully and have fertile offspring?