An infectious agent already existing on or in the body is called ________.
A. exogenous
B. axenic
C. endogenous
D. an exotoxin
E. an enterotoxin
Answer: C
Biology & Microbiology
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A small decrease in seawater pH was shown to have a significant effect on ____
a. climate change b. the oceanic sink for carbon dioxide c. gene expression in sea urchin larvae d. genes expression in zooplankton e. carbon dioxide accumulation in the ocean
Biology & Microbiology
Which of the following is an organelle in plant cells that stores starches, fats, and proteins?
a. plastid b. mitochondria c. parasite d. fungi
Biology & Microbiology
The transparent portion of the outer eye that allows light to enter the eye is the
A. lens
B. cornea
C. pupil
D. iris
Biology & Microbiology
When thyroid hormone concentration is low the anterior pituitary secretes less TSH
____________________ Indicate whether the statement is true or false.
Biology & Microbiology