A type of virus that infects only bacteria is called a
A) bacteriophage
B) retrovirus
C) rhinovirus
D) coronavirus
Ans: A) bacteriophage
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Which of the following are in order from primary
producer to 4th trophic level? a. grass: coyote: bird: grasshopper b. coyote: bird: grasshopper: grass c. bird: grasshopper: grass: coyote d. grass: grasshopper: bird: coyote e. none of these
Which of the following is NOT true of hormones?
a. They are found in multicellular organisms. b. They are chemical messengers. c. They regulate development. d. They are a type of gene. e. They regulate growth.
Which virus attacks white blood cells?
A) Rabies B) Smallpox C) Influenza D) Herpes E) HIV
The passage of an arthropod through stages from egg to adult is called
A. metamorphosis. B. succession. C. graduation. D. evolution. E. differentiation.