The First Leaves Produced by an Embryo While Still Inside

question 64

Multiple Choice

The first leaves produced by an embryo while still inside the seed are:

• A)cotyledons.
• B)endosperms.
• C)embryo sacs.
• D)coleoptiles.
• E)epicotyls.

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Definitions:

Infant Rooting

A reflex in infants that causes them to turn their head toward anything that strokes their cheek or mouth, aiding in the act of breastfeeding.

Instinctive Behavior

An innate, typically fixed pattern of behavior in animals in response to certain stimuli.

Nicotine

A potent chemical found in tobacco plants that acts as a stimulant in the human body and is highly addictive.

Yerkes-Dodson Law

A theory suggesting that there is an optimal level of arousal for best performance on a task, with both very low and very high levels of arousal leading to poorer performance.