What are the four major models of the evolution of female mate preferences?
What will be an ideal response?
ANS:
direct benefits, good genes, runaway sexual selection, and sensory bias
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Which of the following enzymes are NOT secreted by TH1 to activate macrophages?
A) granulocyte-monocyte colony stimulating factor B) interferon gamma C) TNF-? D) fibrin
The original A population was established by a dispersal event to its island by a mainland population of the species. Now two new species have evolved on the island, A1 and A2
Which represents the phylogeny of the populations discussed in the scenario above? What will be an ideal response?
Turgor pressure involves
a. cell division. b. cell expansion. c. differentiation. d. mitosis.
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. a decreased proton gradient will cause less ATP to be produced from the light reactions. B. the increased number of protons will be directly used in the thylakoid to produce glucose. C. an increased proton gradient will provide the energy needed to produce ATP from the light reactions. D. the increased proton gradient will be used to make NADPH for the Calvin cycle.