In which of the following groups must sperm no longer swim to reach the female gametophyte?

a. Bryophytes
b. Ferns
c. Gymnosperms
d. Both gymnosperms and angiosperms
e. Angiosperms


Answer: d. Both gymnosperms and angiosperms

Biology & Microbiology

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Stimulus recognition is often carried out by specialized sensory receptors called ____ detectors

Fill in the blank with the appropriate word.

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Which muscle(s) would have the greatest number of muscle cells per motor unit?

A) muscles controlling the movement of our hands B) facial muscles C) a thigh muscle D) muscles controlling the movement of an eyeball

Biology & Microbiology

What would be a consequence of a missing or damaged epiglottis?

a. an inability to swallow food b. digestive acid escaping into the esophagus c. aspiration of food into the lungs d. incomplete neutralization of chyme

Biology & Microbiology

The polysaccharide found in the cell walls of plants is ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology