Which of the Following Events Suggests There Is a Change

question 40

Multiple Choice

Which of the following events suggests there is a change in the egg cell membrane after penetration by a sperm?

• A)The pollen tube grows away from the egg toward the polar nuclei.
• B)Ca²⁺ builds up in the cytoplasm of the egg.
• C)The egg cell plasmolyzes.
• D)Double fertilization occurs.
• E)There is a spike in membrane transport activity.

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Definitions:

Palatine Bones

Bones that form part of the hard palate of the mouth as well as parts of the nasal cavity and eye orbits.

Maxillae

The pair of large facial bones that form the upper jaw and parts of the orbits of the eyes, necessary for chewing and supporting the face.

Mandible

The lower jawbone in vertebrates, which holds the lower teeth in place and forms the structure necessary for chewing.

Vomer Bone

A small, thin bone forming part of the nasal septum, which divides the nasal cavity into two nostrils.