Fire in the dry shrublands does not kill the small
bushy plants most probably because
a. these plants have a tough protective bark.
b. their leaves are very heavy and wet.
c. they can resprout from root crowns.
d. the Forest Service puts the fires out quickly.
e. the fires burn the taller plants and burn out
before reaching ground level.
Answer: c
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Which consequence is a documented result of global warming?
a. Cold-adapted species are more common. b. Plants display later flowering and growth. c. Minimum temperatures at Yosemite have increased about 3o over the last century. d. Animals display later migration and breeding. e. Minimum temperatures at Yosemite have decreased about 3o over the last century.
The regulatory systems of the animal body maintain a relatively stable internal condition through a process called ____________________.
A. equilibrium B. absorption C. osmoreception D. homeostasis E. countercurrent exchange
If you skip a meal, which of the following
conditions will prevail? a. Insulin levels will rise. b. Glucagon levels will rise. c. Glycogen will be converted to glucose. d. Insulin levels will rise, and glycogen will be converted to glucose. e. Glucagon levels will rise, and glycogen will be converted to glucose
If caloric intake is balanced with energy output, body
a. weight gain will occur. b. weight loss will occur. c. weight will remain stable. d. fat content will increase. e. protein will decrease.