The type of cooperation between two species of a community that is based on satisfying the needs of both species is called
A. commensalism.
B. mutualism.
C. parasitism.
D. predation.
B. mutualism.
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Using bright-field microscopy to look at a slide prepared with a basic dye you observe cells under 400X magnification with a clear inner compartment within the cell. The cell is most likely a(n)
A) prokaryote. B) bacterium. C) archaeon. D) eukaryote.
In streams and rivers, most of the microbial biomass is ________.
A. metabolically inactive B. floating on the surface C. buried in bottom sediments D. attached to surfaces
What is required to get a cellular slime mold to form a pseudoplasmodium?
What will be an ideal response?
During operant conditioning, an animal learns to
A) perform a behavior to receive a reward or avoid punishment. B) perform a response to a new stimulus. C) change an imprinted behavior. D) behave like a different animal. E) imprint upon an inappropriate object.