Metabolism includes the synthesis of substances necessary for life, as well as the breakdown of substances to produce energy.
a. true
b. false
a. true
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Which of the following best describes the kind of resource for which individuals may
A. It will most likely be food or some form of nutrient. B. It will most likely be related to space or shelter. C. It will most likely be related to reproduction, such as access to mates. D. It will most likely be related either to food, nutrients, space, or shelter. E. It can be any resource that is limited in the environment.
What forms the basis of a reef community?
a. Zooxanthellae b. Scleractinian corals c. Cnidocytes d. Corallites
The end result of the process in Figure 20-1 is:
a. sympatric speciation.
b. allopolyploidy.
c. hybridization.
d. rapid speciation.
e. All responses apply
Which statement about leaves is NOT correct?
A. Gas exchange occurs through tiny openings in the leaf surface called stomata. B. Vascular tissue is arranged in a net pattern in eudicots and a parallel pattern in monocots. C. In eudicots, the photosynthetic mesophyll is made up of an upper spongy layer and a lower palisade layer. D. The epidermis is covered by a waxy layer of cuticle that reduces water loss. E. Regulation of gas exchange through the leaf is the responsibility of the guard cells.