What are population pyramids used to show?
A. Birth rates
B. The carrying capacity
C. Death rates
D. Age composition of a population
E. Competition
Answer: D
Biology & Microbiology
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buds?
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The prokaryote operon model explains gene
regulation at the level of a. replication. b. transcription. c. transcript processing. d. transcript transport. e. translation.
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Which biome is a treeless plain that occurs around the Arctic Circle?
A. Shortgrass prairie B. Taiga C. Cold desert D. Cold grassland E. Tundra
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Excitatory neurotransmitters are most like what part of an automobile?
A) brakes B) windshield wiper C) accelerator D) horn
Biology & Microbiology