The Demographic Measure Called "Sex Ratio" Refers to

question 102

Multiple Choice

The demographic measure called "sex ratio" refers to

• A) how effectively couples conceive children.
• B) the ratio of children to adults in a population.
• C) the number of females for every 100 males in the population.
• D) the number of males for every 100 females in the population.

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Definitions:

Monocot Embryo

An embryo from a monocotyledonous plant, characterized by having a single cotyledon (seed leaf).

Coleoptile

The protective sheath covering the emerging shoot in monocotyledons, such as grasses and cereals.

Eudicot Cotyledon

One of the two major groups of angiosperms (flowering plants) characterized by embryos with two cotyledons or "seed leaves."

Triploid Endosperm

A tissue in seeds of flowering plants that is formed during fertilization and nourishes the developing embryo with a triple set of chromosomes.