The largest mass extinction event of all time occurred at the end of the
A) Mesozoic era.
B) Pleistocene epoch.
C) Cambrian period.
D) Permian period.
E) Cretaceous period.
D
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What type of thinking is required?
What will be an ideal response?
Mitochondrial diseases ________
A) are very rare; only a couple of people are diagnosed per year B) are caused only by spontaneous mitochondrial DNA mutations C) cannot be inherited from the mother D) None of the above is true.
What happens to the excess fluid that leaves the capillaries at the venous end?
A. The excess fluid is collected in the lymphatic capillaries. B. The excess fluid is reabsorbed by the intestines. C. There is no excess fluid; 100% always returns to the capillary beds. D. The excess fluid will accumulate in the cells, causing them to rupture. E. The excess fluid is excreted by the kidneys.
A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?
A. Plants have cells but animals do not. B. They are both made of one or more cells. C. They both come from the same kind of cell. D. They both come from a non-living organism.