Viral envelopes are composed of ________.
A. lipids
B. carbohydrates
C. proteins
D. All of the choices are correct.
Answer: D
Biology & Microbiology
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Substance P _____
a. increases pain-related signals b. is a natural painkiller c. is the active ingredient in aspirin
Biology & Microbiology
The balance between osteoblast and osteoclast activities is an example of homeostasis and is regulated by the action of two hormones.
a. true b. false
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When a caterpillar spins a cocoon, this is
A. learned behavior. B. imprinting. C. unlearned (instinctive) behavior. D. a conditioned response.
Biology & Microbiology
What number is the Cell wall?
What will be an ideal response?
Biology & Microbiology