What type of plant would be least affected by the loss of the guard cell function that closes stomata?
A. A desert plant.
B. A plant from the plains of the American midwest.
C. A rainforest plant.
D. A poisonous plant.
E. A carnivorous plant.
C. A rainforest plant.
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A portal system is _____
A) an area connecting arterioles to venules B) a series of vessels that returns blood to the heart in an animal with an open circulatory system C) a space within or between organs where blood is allowed to pool D) a slightly muscular vessel that has minimal pumping action in an organism with no heart E) a vessel or vessels connecting two capillary beds
Letter "C" in the diagram above represents the ____ zone
a. neritic b. abyssal c. oceanic d. benthic e. intertidal
You are investigating the structure of the seeds of a newly discovered tropical plant. There is storage material inside the seed. You treat the seed with peptidase (an enzyme that breaks peptide bonds),
glycoside hydrolases (an enzyme that breaks ? glycosidic bonds), and amylase (an enzyme that breaks ? glycosidic bonds). Only the amylase appears to dissolve the storage material in the seed. What does this tell you about the identity of the storage material? A) The seed contains fibrous proteins to store carbon and energy. B) The seed contains lipids to store carbon and energy. C) The seed contains starch to store carbon and energy. D) The seed contains cellulose to store carbon and energy. E) The seed contains globular proteins to store carbon and energy.
Vaccinations against chicken pox provide individuals with ____ immunity
a. active natural b. active artificial c. passive natural d. passive artificial e. cell-mediated