Which is an external stimulus?

A. Thirst

B. Hunger

C. Pain

D. Heat

ACE inhibitors work on the renin-angiotensin system to prevent the conversion of angiotension I to angiotensin II.

Which of the following is an example of human monosomy - Down syndrome, Klinefelter syndrome, Turner syndrome, none of the above

Why is a reduction in biodiversity due to loss of plant populations especially destructive to an ecosystem?

the phenotype frequency in a population changes after each generation. which would most likely cause this?

If the apical meristem of a mature plant is removed, the plant will most likely A. lose its ability to develop new roots. B. show a dramatic and rapid increase in height. C. develop apical dominance and begin to flower. D.

Food choices can be influenced by environmental factors, such as

In the human body, which of the following is considered an external defense in the prevention of disease? Mucous Histamines Antibodies Fever

A scoop of ice cream is placed on top of a warm piece of pie in a bowl. Which statements about this scenario are true? Select all that apply. The pie's energy will destroy a portion of the ice cream's energy.

Which swedish biologist is often called the father of taxonmony

Explain why water is critically important to most facets of human life.