The Menstrual Cycles of Women Who Live Together Tend to Synchronize

question 6

True/False

The menstrual cycles of women who live together tend to synchronize.

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Definitions:

Proboscis

An elongated appendage from the head of an animal, especially an insect, used for feeding or sensing.

Deuterostomes

A major group within the animal kingdom that includes organisms developing an anus from the first opening in the embryo, with subsequent formation of the mouth.

Protostomes

A group of animals characterized by developing the mouth before the anus during embryonic development, including mollusks and arthropods.

Deuterostomes

A category of animals characterized by their embryo development; the first opening (the blastopore) becomes the anus.