Characterize the Life Cycle of Cnidarians

question 23

Multiple Choice

Characterize the life cycle of cnidarians.

• A)All species have both polyps and medusae.
• B)Some have only polyps,some have both polyps and medusae,and others have medusae and a reduced polyp stage.
• C)Some species have only medusae and others have both polyps and medusae.
• D)Some species have only polyps and others have both polyps and medusae.
• E)Some species have polyps and others have medusae,but no species has both.

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Definitions:

Nectar

A sweet liquid produced by plants, which serves as a food source for pollinators such as bees and butterflies.

Optimal Foraging Hypothesis

A theory suggesting that animals will maximize their net energy intake per unit of foraging time, leading to behaviors that are most efficient in gaining resources.

Hummingbird

A small bird known for its ability to hover in mid-air due to rapid wing flapping and for feeding on nectar.

Nectar

A sweet liquid produced by plants, serving as an attractant for pollinators such as bees and hummingbirds.