Starting with a Fertilized Egg (Zygote), a Series of Six

question 20

Multiple Choice

Starting with a fertilized egg (zygote) , a series of six cell divisions would produce an early embryo with how many cells?

• A) 12
• B) 16
• C) 32
• D) 64

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Definitions:

Absolute Threshold

The lowest level of stimulation that a person can consciously detect 50 percent of the time the stimulation is present.

Stimulus

is any object or event that elicits a sensory or behavioral response in an organism.

Absolute Threshold

The minimum intensity of a stimulus required to be correctly detected at least 50% of the time.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time, reflecting the lowest level of sensory input that is perceptible.