An Expressive Smile Is Characterized by __________

question 27

Multiple Choice

An expressive smile is characterized by __________.

• A) expression even when others are not around
• B) changes in both the shape of the mouth and the shape of the upper face and eyes
• C) when an animal or human experiences pleasure
• D) all of the above

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Definitions:

Ovary

(1) In animals, one of the paired female gonads responsible for producing eggs and sex hormones. (2) In flowering plants, the base of the carpel that contains ovules; ovaries develop into fruits after fertilization.

Pistil

The female reproductive part of a flower, consisting of the ovary, style, and stigma.

Ovules

Ovules are the structures in seed plants that develop into seeds after fertilization.

Carpel

The female reproductive unit of a flower; carpels bear ovules. Compare with pistil.