Which of the Following Adaptations Is NOT Associated with the Ability

question 85

Multiple Choice

Which of the following adaptations is NOT associated with the ability of birds to fly?

• A) high metabolic rate
• B) broad, keeled breast bone
• C) "one-way" air flow through the respiratory system
• D) hollow bones
• E) enlarged visual centers

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Definitions:

Cross-pollination

The transfer of pollen from the anther of a flower of one plant to the stigma of a flower of another plant, promoting genetic diversity.

Pollen Grain

In seed plants, structure that is derived from a microspore and develops into a male gametophyte.

Polar Nucleus

In plants, one of the two nuclei that migrate to the center of the embryo sac and fuse with a sperm nucleus during fertilization, contributing to the endosperm's development.

Sperm Nucleus

The male genetic material contained within the head of a sperm cell that fuses with an egg cell's nucleus during fertilization.