Sleep Apnea Refers To

question 151

Multiple Choice

Sleep apnea refers to:

• A) a disorder whereby a person falls asleep uncontrollably for 10 or more seconds
• B) insomnia caused by anxiety
• C) insomnia caused by the excessive use of sedatives during the day
• D) a condition whereby a person stops breathing while asleep for 10 or more seconds

---

Definitions:

Root Hairs

Small hair-like outgrowths from a plant root that increase the surface area for water and nutrient absorption.

Endodermis

The innermost layer of cells in the root cortex that regulates the transfer of water and nutrients from the soil into the vascular system of plants.

Vascular Bundles

Structures in plants that contain xylem and phloem tissues, responsible for conducting water, nutrients, and sugars throughout the plant.

Pollen Grains

Microscopic particles produced by the male parts of flowers, which are necessary for the fertilization of plants through pollination.