Chemical signals that mediate interactions between two or more members of a given species are called ________.

A. competitive exclusions
B. pheromones
C. hormones
D. alarm signals


Answer: B

Biology & Microbiology

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The GAG codon, which codes for glutamic acid, is mutated to GUG, which now codes for valine. What type of mutation is this?

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Cell expansion involves which of the following components?

A. loss of water B. low acidic condition C. enzymes that produce polysaccharides D. expansion of cellulose microfibrils E. water leaving the central vacuole

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One of the most important types of information that a patient can bring to an initial appointment with a genetic counselor is

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Conservation biology includes

a. a survey of biological diversity. b. maintaining biodiversity to benefit human populations. c. ecological considerations of diversity. d. an effort to maintain biodiversity. e. all of these

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