One way in which deforestation contributes to global climate change is that the conversion of forest to cropland or
pasture ____.
a. decreases the amount of methane released by microbes
b. increases the amount of nitrogen oxides in the air
c. decreases the amount of sulfur dioxides in the air
d. increases the rate at which carbon is taken up by plants
e. decreases the rate at which carbon is taken up by plants
ANSWER: e
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A plant is treated with a chemical that blocks the flow of electrons between photosystem II and photosystem I, such that protons are not transported from the stroma into the thylakoid compartment. What is the effect of this chemical on photosynthesis?
A. the increased number of protons will be directly used in the thylakoid to produce glucose B. an increased proton gradient will provide the energy needed to produce ATP from the light reactions C. a decreased proton gradient will cause less ATP to be produced from the light reactions D. the increased proton gradient will be used to make NADPH for the Calvin cycle 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 photo systems II and I and electron transport? What other information is related to the question? Choose Answer Do you have the necessary information to solve the problem? 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?
Membrane transport that modifies the substance being transported into the cell so that it can't be lost from the cell
What will be an ideal response?
Sexual dimorphism has arisen as a result of ____
a. stabilizing selection b. heterozygote superiority c. kin selection d. sexual selection e. directional selection
Which of the following is an incorrect match?
a. pea pods; dehiscent b. strawberry; berry c. cherry; drupe d. corn; indehiscent e. tomato; berry