Identify the Letter of the Choice That Best Matches the Phrase

question 81

Multiple Choice

Identify the letter of the choice that best matches the phrase or definition.
-Coordinates all the activities of computer hardware.

• A)user icon
• B)password
• C)sign-in screen
• D)Shut down command
• E)file
• F)Restart command
• G)folder
• H)operating system
• I)navigating
• J)user name

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Definitions:

Acrosome

A cap-like structure over the anterior portion of a sperm's head, containing enzymes that help the sperm penetrate the egg.

Fertilization Process

The union of male and female gametes to form a zygote, initiating the development of a new organism.

Enzymes

Proteins that catalyze, or speed up, chemical reactions within living organisms without being consumed in the process.

Refractory Period

Time following an action potential when a neuron is unable to conduct another nerve impulse.