Unit Test — Cumulative exam Answers

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The tropical pitcher plant is a unique plant that obtains its nutrition by digesting insects. The plant traps insects in its pitcher-shaped leaves and dissolves them as part of the digestion process. Tropical pitcher plants grow in warm, moist places in which the soil is poor in nutrients. Because of their feeding habits, pitcher plants are able to control the insect populations in the areas in which they live.

A
controlling insect populations
B
sharing a habitat with insects
C
having pitcher-shaped leaves
D
being a unique type of plant
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Which characteristic of potassium makes it useful for dating rocks?

A
It has a long half-life.
B
It decays at an unknown rate.
C
It produces lead as it breaks down.
D
It can be used to date all types of rock.
24

Which best summarizes the results of Mendel’s pea plant experiments?

A
One parent passes traits to offspring in a random process.
B
Both parents pass traits to offspring in a random process.
C
Both parents pass traits to offspring in a fairly predictable pattern.
D
One parent passes traits to offspring in a fairly predictable pattern.
25

Which is the best example of parasitism?

A
A pearlfish hides within a sea cucumber, and the sea cucumber is not affected.
B
A sparrow catches and eats a painted lady butterfly.
C
A tapeworm lives inside the intestines of a pig, robbing the pig of nutrients it needs.
D
An ant eats nectar produced by a flower, and the flower is not harmed.

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