Author: Anonymous

The testes descend through the inguinal canal into the scrotum ___________

In the lungs of a human oxygen moves from the alveolar space into the blood of the capillaries with the help of active transport.

You hear that horsehair worms do not have any specific respiratory system.  Which of the following would most likely be true of horsehair worms?

A woman ovulates at approximately the same time as the level of the hormones FSH and LH peak in her blood stream.

Insects have no circulatory system.

For fertilization to occur, intercourse must occur no more than ______ day(s) before ovulation and no later than ____ day(s) after  ovulation.

In humans, the digestion of proteins is initiated in the small intestine.

Vitamin C is a compound needed by the body in small quantities. The molecule needs to be taken in via the diet since the body is unable to produce it on its own.

The most efficient type of lungs can be found in the following taxon _____

During exercise, there is an increased blood flow to which of the following tissues. Mark all the correct answers.