A One-Celled Organism Formed by the Union of the Sperm

question 170

Multiple Choice

A one-celled organism formed by the union of the sperm and egg is known as

• A) zygote.
• B) germinal.
• C) embryo.
• D) foetus.

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Definitions:

Myelin Sheath

A fatty layer that envelopes nerve fibers, facilitating the rapid transmission of electrical impulses.

Fat Cells

Also known as adipocytes, these cells store energy in the form of fat and play key roles in metabolism, hormone regulation, and thermal insulation.

Small-For-Date

Refers to infants born with a birth weight lower than the normal range for their gestational age, possibly indicating prenatal issues.

Illusory Visual Cliff

A psychological experimental setup designed to test infants' and young animals' perception of depth and their ability to perceive visual illusions.