#Question id: 11538
#Unit 7. System Physiology – Animal
Prostaglandins are local regulators whose chemical structure is derived from ________.
#Question id: 3524
#Unit 8. Inheritance Biology
Which of the following genotypes would produce the greatest variety of gametes of the alleles assorted independently?
#Question id: 32
#Unit 1. Molecules and their Interaction Relevant to Biology
Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. This is an example of a(n):
#Question id: 3491
#Unit 11. Evolution and Behavior
Some dogs love attention, and learns that if he barks, he gets attention. Which of the following might you use to describe this behavior?
A) The dog is displaying an instinctive fixed action pattern.
B) The dog is trying to protect its territory.
C) The dog has been classically conditioned.
D) The dog's behavior is a result of operant conditioning
E) The dog is displaying controlled by external stimuli
#Question id: 9171
#Unit 9. Diversity of Life Forms
Suppose that the number of bird species is determined mainly by the number of vertical strata found in the environment. If so, in which of the following biomes would you find the greatest number of bird species?