question:
Infectious diseases are caused by

answer:
microorganisms

question:
In plants, which describes sexual reproduction but not asexual reproduction?

answer:
A fertilized egg cell divides to produce an embryo.

question:
The population of which of the following 26 organisms would most likely decline if small animals like rats, rabbits, and snakes were eliminated from an ecosystem?

answer:
hawks

question:
In the human body the digestion of proteins takes place primarily in which two organs?

answer:
Stomach and small intestine