All of these are reported to cause deformities in amphibians except:a
pesticides.
b. pollution.
c. trematodes.
d. atrazine.
e. predators
E
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The life cycle of a sexually reproducing organisms includes:
A. mitosis and meiosis. B. mitosis, meiosis, and fusion of the gametes. C. meiosis and fusion of gametes D. only mitosis E. only meiosis
Which biome is characterized as having a layer of permafrost covering its soil year-round?
A. tundra B. chaparral C. savanna D. taiga E. temperate coniferous forest
One study has shown that when more lions join a hunting group, _____
a. the success rate falls b. the success rate remains proportional c. the success rate increases d. the success rate is the same but there is more food on average e. more eventually drop out to be in isolation
Which of the following classification methods relies on the morphology of organisms?
A. phage typing B. physical characteristics C. biochemical tests D. analysis of nucleic acids E. serological tests