The
A. right atrium B. left atrium C. right ventricle D. left ventricle
receives oxygen-poor blood from the body and pumps it to the
A. right atrium B. left atrium C. right ventricle D. left ventricle
through the tricuspid valve.

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.