Refer to the Figure

question 63

Multiple Choice

Refer to the figure.

-The figure is based on Johnson's experiment on the effects of trematode parasites on tadpoles. Suppose that 60 tadpoles are exposed to 32 parasites per tadpole. Based on the results of the figure, about how many tadpoles would you expect to survive to metamorphosis?

• A) 12
• B) 25
• C) 40
• D) 58

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Definitions:

Earlier Views

The perspectives, hypotheses, or theories that prevailed in scientific or cultural contexts before current understandings.

Geology

The science that deals with the Earth's physical structure and substance, its history, and the processes that act on it.

Traits Evolve

The process by which characteristics or traits of organisms change over generations through natural selection and genetic drift.

Species Survive

The ability of a species to continue existence and avoid extinction by adapting to environmental changes or overcoming threats.