Living Things Ordinarily Too Small to Be Seen with the Unaided

question 51

Short Answer

Living things ordinarily too small to be seen with the unaided eye are termed ____.

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Definitions:

White Blood Cells

Cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

Mucin

A protein component of mucus, which helps to protect and lubricate surfaces.

Simple Columnar Cells

A type of epithelial cell that is column-shaped and designed to absorb or secrete substances, commonly found in the digestive tract and uterus.

Ventral Body Cavities

The body's anterior (front) cavities, including the thoracic, abdominal, and pelvic cavities, housing major internal organs.