Which of the following statements about blood vessels is correct?
select one:
a. all blood vessels contain an inner smooth muscle layer.
b. all blood vessels contain a tunica externa.
c. all blood vessels contain a tunica intima.
d. all blood vessels contain an inner connective tissue layer.

In which specialized organ of the plant would these cells most likely be found

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons