Density-independent factors are abiotic.

Indicate whether the statement is true or false


Ans: True

Biology & Microbiology

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The same molecule may be both __________ and

__________. a. enzyme; neurotransmitter b. neurotransmitter; hormone c. enzyme; pheromone d. hormone; second messenger e. hormone; local signaling molecule

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Which of the following are NOT structures by which viruses adhere to their host cells?

a. Capsule b. Spikes c. Fimbriae d. Slime layer

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Herbivores typically prefer plants with the highest concentrations of ________, an element that is probably detected by taste and odor

Fill in the blank(s) with correct word

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When blood calcium levels are too low, the hormone _____ is released, which stimulates osteoclasts to break down bone and release calcium into the blood

calcitonin growth hormone estrogen parathyroid hormone

Biology & Microbiology