Density refers to the
a. average weight of individuals in a population.
b. ability of the population to adapt to the environment.
c. intelligence of the organism.
d. biomass of the population of organisms.
e. number of individuals per unit area.
E
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During the light-dependent reactions, due to electron transport, the thylakoid space becomes
A. the site of ATP synthesis. B. the site of NADPH production. C. the site where the Calvin cycle occurs D. more acidic than the stroma. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about thylakoid membranes and proton gradients? What other information is related to the question? Choose Answer Do you have the information needed to make a determination? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
You may have heard the advice to “eat low on the food chain.” Explain how choosing a soybean-protein “burger” rather than a beef burger for lunch is energy efficient with respect to energy flow and utilization in trophic levels.
What will be an ideal response?
In the collecting ducts of the kidney, antidiuretic hormone promotes water conservation by increasing the levels of
A. aquaporins. B. G-protein coupled receptors. C. vasopressin. D. Na+/K+ ATPase. E. Na+/glucose symporters.
Which molecule is the final electron acceptor in respiration?
a. water b. ATP c. carbon dioxide d. oxygen e. hydrogen