Justin and Jacob Are Identical Twins

question 62

Multiple Choice

Justin and Jacob are identical twins. They are the result of _____.

• A) one ovum fertilized by one sperm that split into two zygotes
• B) two separate ova that were fertilized by two different sperms
• C) one ovum that was fertilized by two sperms
• D) two ova that were fertilized by one sperm

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Definitions:

Alertness

The state of being watchful, fully awake, and ready to respond to stimuli or challenges that arise.

Brain Wave Patterns

The electrical activity in the brain, as detected by electroencephalography (EEG), which is associated with different states of consciousness.

Alpha Waves

Brainwave patterns associated with a state of wakeful relaxation and calm alertness.

Theta Waves

A type of brainwave pattern associated with sleep, deep relaxation, and certain stages of memory processing, typically in the frequency range of 4–8 Hz.