What is characteristic of dry shrublands (chaparral)?
a. Cool, wet winters are followed by hot, dry summers.
b. Primary production is abundant throughout the year.
c. Constant cool temperatures prevail throughout the year.
d. Winters are mild and summers are wet.
e. Precipitation occurs evenly year round.
a
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The maintenance of the volume and composition of
body fluids is the primary responsibility of which system? a. integumentary b. immune c. digestive d. urinary e. circulatory
The introduction of a small population onto an island that results in a different gene pool from the
original source is explained by a. the Hardy-Weinberg law. b. genetic drift. c. the bottleneck effect. d. the founder effect. e. the effect of genetic isolation.
Prostaglandins may act as local signaling molecules in the uterus, causing ________
Fill in the blank(s) with correct word
Altogether, the body secretes about 7 liters of water into the alimentary canal each day. About what percentage of this water gets reabsorbed?
A) 30% B) 50% C) 75% D) 90%