Moths have an Ig-family protein called ____, which binds to pathogens and enhances their
phagocytosis.
a. hemolysin
b. cadherin
c. bradykinin
d. hemolin
e. defensin
D
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What was the benefit of the starling's adaptive behavior? a. Decreased competition for nesting sites
b. Decreased mating competition. c. Decreased predation. d. Decreased competition for food. e. Decreased parasitism on the fledglings from mites.
Which type of lipid is composed of long-chain fatty acids attached to long-chain alcohols?
a. triglycerides b. phospholipids c. sterols d. waxes e. most neutral fats
In the knee-jerk reflex arc, the synapse between a
sensory neuron and a motor neuron occurs a. in the brain. b. between the receptor and the spinal cord. c. within the muscle of the leg. d. within the spinal cord. e. in the nerve leading to the spinal cord.
Picrophilus has a pH optimum below 1 and can even grow at or near pH 0.
Answer the following statement true (T) or false (F)