When the Molten Lava Drains Away from Beneath the Hardened

question 21

True/False

When the molten lava drains away from beneath the hardened surface of a flow it leaves open tunnels called lava tubes.

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Definitions:

Y Chromosome

The sex chromosome found only in males. When paired with an X chromosome from the mother, it produces a male child.

Gender Roles

Socially constructed roles, behaviors, activities, and attributes that a given society considers appropriate for men and women.

Temperament

The combination of mental, physical, and emotional traits of a person; natural predisposition, which is often evident from infancy.

Testosterone

The most important of the male sex hormones. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs in the fetus and the development of the male sex characteristics during puberty.