What sort of phage is bacteriophage lambda considered to be?
a. a virulent phage
b. a plant phage
c. an animal phage
d. a temperate phage
Ans: d. a temperate phage
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Which of the following organisms are not classified as consumers?
a. Humans b. Trees c. Fungi d. Worms e. Parasites
It’s Mystery Mollusk Monday, and you’ve been given a bucket full of animals that resemble aquatic worms. Your mystery mollusks don’t have shells, tentacles, eyes, or a foot, but they do have a radula. How do you classify these animals?
a. Monoplacophora b. Solenogastres c. Caudofoveata d. Scaphopoda
All of the following characterize activity at the nicotinic receptor EXCEPT
a. the channel opens rapidly and depolarization occurs. b. sodium and/or calcium ions enter the next cell. c. prolonged stimulation of receptors can lead to desensitization. d. nicotine receptors in the muscles are more sensitive than those in the CNS.
Which of the following factors is LEAST likely to attract pollinators to a flower?
A. the amount of nectar B. color of the flower in visible light C. taste of the ovules D. odor E. color of the flower in UV light