Glial Cells Make Up 90 Percent of the Brain's Cells

question 75

True/False

Glial cells make up 90 percent of the brain's cells.

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Definitions:

Embryo

An early stage of development in multicellular organisms after fertilization and before becoming a fetus, marked by rapid cell division and differentiation.

Zygote

The initial cell formed when two gamete cells are joined by means of sexual reproduction, representing the earliest developmental stage of the embryo.

Teratogens

Any agent that can cause developmental malformations (birth defects) in an embryo or fetus.

Prenatal

Pertaining to the period before birth, from conception to the onset of labor.