Which of the following processes is not one that is common to all symbionts?
A. Reproduction
B. Colonization
C. Predation
D. Persistence
Answer: C
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An ecologist who studies the cycling of nutrients and the flow of energy between the biotic and abiotic components of
an ecological community is a(n) ____ ecologist.
a. behavioral b. behavioral c. community d. ecosystem e. organismal
The F2 phenotypic ratio of a monohybrid cross is
a. 1:1. b. 2:1. c. 9:3:3:1. d. 1:2:1. e. 3:1.
Fatty acids are ________; they function in the cell as ________
A) short chains of double-bonded carbon molecules; storage lipids B) short chains of double-bonded carbon molecules; vitamins and cofactors C) four-ringed hydrocarbon molecules; key components of membranes D) long, unbranched hydrocarbon chains with a carboxyl group at one end; building blocks for other lipids E) short chains of double-bonded carbon molecules; vitamins, cofactors, and storage lipids
Approximately how many people are on Earth today?
A) 7 million B) 70 million C) 700 million D) 7 billion