The caplike structure that covers the head of the sperm and releases enzymes that will help the sperm penetrate the egg is the

A. epididymis.

B. vas deferens.

C. acrosome.

D. mitochondrion.

E. nucleus.


C. acrosome.

Biology & Microbiology

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During action potential conduction along a myelinated axon, the action potential appears to jump from ____

a. synapse to synapse b. node to node c. dendrite to axon d. axon to dendrite e. inside to outside

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A 5'-cap describes the addition of a base, usually thymine, to the 5' end of a completed peptide

Indicate whether the statement is true or false

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Ecosystem diversity

A. is primarily associated with aquatic habitats. B. is the diversity of animal species within a defined geographical area. C. includes only species-rich ecosystems. D. refers to the structure and function within an ecosystem.

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____ is a polysaccharide that is found in plant cell walls and accounts for their strength.

a. Enzyme b. Cellulose c. Starch d. Cytoplasm e. Peroxisome

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