In the early Paleozoic Era, a remarkable diversification of life appeared. This event is called ___.
a. Mass extinction
b. Cambrian explosion of life
c. Jurassic explosion of life
d. K-T boundary event
Answer: b. Cambrian explosion of life
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Resource partitioning is one solution to the problems associated with ecological succession.
Answer the following statement true (T) or false (F)
Water pipes sometimes burst at low temperatures because
A. the thawing process produces pressure on the pipes. B. the ground contracts when colder, pulling pipes apart. C. water contracts when freezing. D. water expands when freezing.
The most abundant rock type deposited during the Kaskaskian sequence was
a. the Oriskany Sandstone. d. black shale. b. carbonates. e. arkoses. c. evaporites.
Which of the following statements regarding Manatees is correct?
A) Their front flippers have nails that resemble the nails on elephant feet. B) Their fur is thick, and each hair is dense for better insulation. C) They are short animals that can reach lengths of only up to 2 meters. D) They eat more than 50 kinds of marine life. E) They populate the tropical regions of the Indian and Western Pacific Oceans.