Which of the following can vary the resistance to
blood flow by controlling their musculature?
a. arteries
b. veins
c. capillaries
d. arterioles
e. all of these
Answer: d
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What powers the ATP synthase enzyme in the
light-dependent reactions of photosynthesis?
a. energy from ATP b. energy from NADPH c. energy from the splitting of water d. energy from electron transfer chains e. energy from the flow of hydrogen ions
Which of the following is one of the four main
types of tissues?
a. bone b. muscle c. cartilage d. blood e. more than one of these
Floods are worse after levees are built and wetlands are drained because
A. water moves into rivers more quickly. B. rainfall becomes more intense per unit area. C. the total volume of water increases. D. people complain more about damage. E. All of these are reasons floods are worse after levees are built and wetlands are drained.
In the animal subkingdom ________, the animals lack symmetry and possess neither tissues nor organs.
Fill in the blank(s) with the appropriate word(s).