Coniferous Trees Lose Their Leaves Each Year, and Deciduous Trees

question 18

True/False

Coniferous trees lose their leaves each year, and deciduous trees have needles and cones.

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Definitions:

Endocrine

Pertaining to glands that secrete hormones or to the hormones themselves, which are released into the bloodstream to affect distant organs.

Estrogens

A class of hormones, including estradiol, that are more prevalent in females; they are associated with the development of the secondary and primary sex characteristics and with sexual behavior.

Androgens

A class of hormones, including testosterone, that are more prevalent in males; they are associated with the development of the secondary and primary sex characteristics and with sexual behavior.

Ovaries

The female gonads (sex glands); they release the sex hormones and produce the cells that females use for sexual reproduction, called eggs.