Why do marine scientists examine age structure?
o it provides insight into the future of the species.
it is very difficult to tell the age of sea creatures.
o it is a good sign if most of the population is very old.
o it is important for determining where in a region a species lives.

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

answer; ///progressive relaxation;

the most likely explanation for this is that his wounds have started to scab over and that stops the bleeding.