Which two organisms are most closely related?
a. quiscalus mexicanus and carpodacus mexicanus
b. sylvilagus floridanus and sylvilagus palustris
c. procyon lotor and zapus hudsonius
d. enhydra lutris and martes pennanti

The answer is B.

The most closely related organisms will have the same genus, which is the first part of an organism's name. Since both organisms in option B start with Sylvilagus, they are most closely related. 

We would all die, because:

Without oceans; no water.
Without Oceans; no rainforest.
Without Oceans; fish.
Without Oceans: no rain.

We need water to survive, we need fish to eat, we need rain because for many places on earth that is all the water they get. Without the Ocean, we probably wouldn't have the glaciers, which keep the whole world cool, the Navy, Marine Corps, Marine Biologists wouldn't have jobs. We would all die without the Ocea.