Which of the following is an example of commensalism?
A. Wood-digesting flagellates living in the gut of termites
B. A female mosquito sucking blood from a musk oxen
C. Barnacles hitching a ride on the skin of a whale
D. Acacia trees and their ants
E. A tapeworm living in the intestines of a mule deer
Answer: C
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The discipline of microbiology is intimately associated with biochemistry and genetics, because cells are both biochemical catalysts and genetic coding devices
Indicate whether the statement is true or false.
Small RNAs can regulate gene expression by
A) binding target RNAs and inhibiting translation. B) binding rho and preventing termination. C) binding target promoter regions and preventing transcription. D) binding target operator regions and preventing transcription.
The images above are an example of
a. mimicry. b. display behavior. c. warning coloration. d. chemical defenses. e. camouflage.
Which of the following produces a hallucinogenic toxin?
A) Amanita phalloides B) Claviceps purpurea C) Psilocybe cubensis D) Pseudallescheria E) Paracoccidioides brasiliensis