Release of large numbers of eggs into the water column is an adaptation to cope with which of the following adverse conditions of the rocky intertidal zone?
A) Difficulty finding mates
B) Drying out during low tide
C) Lack of space or attachment sites
D) Predators
E) Strong wave activity
A
Environmental & Atmospheric Sciences
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The contact between the shale, which dominates the bottom part of this sedimentary sequence, and the sandstone, which dominates the upper part, is best described as
A. blurry. B. sharp. C. gradational.
Environmental & Atmospheric Sciences
About 90 percent of the ocean is remarkably uniform in temperature, ranging from ________.
A. -1°C to 30°C B. -10°C to 30°C C. -1°C to 4°C D. -10°C to 10°C
Environmental & Atmospheric Sciences
Which is the most abundant ion in seawater?
-Potassium -Calcium -Magnesium -Chloride -Sodium
Environmental & Atmospheric Sciences
Which of the following is not a density-dependent population control factor?
A. Overcrowding B. Drought C. Competition D. Predation E. Stress
Environmental & Atmospheric Sciences