The human eye’s protective mucus membrane is the ____
a. retina
b. sclera
c. cornea
d. conjunctiva
e. aqueous humor
ANSWER: d
Biology & Microbiology
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Which of the following statements about peroxisomes is INCORRECT?
A. They were once viewed as semiautonomous. B. They assist in detoxifying molecules. C. They possess a single membrane. D. They possess their own DNA. E. They possess an enzyme that prevents accumulation of hydrogen peroxide and free radicals.
Biology & Microbiology
Most animals show ____ symmetry
a. bilateral b. multilateral c. no d. radial e. unilateral
Biology & Microbiology
The tissue found in the center of a root is ____
a. xylem b. endodermis c. cortex
d. phloem e. pith
Biology & Microbiology
Based on molecular evidence, the ancestor of snakes had legs. How might you explain the loss of legs in modern snakes?
What will be an ideal response?
Biology & Microbiology