#Question id: 8776
#Unit 9. Diversity of Life Forms
What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains, rather than assigning all prokaryotes to the same kingdom?
#Question id: 27954
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 3480
#Unit 11. Evolution and Behavior
Which of the following statements about learning and behavior is correct?
A) Operant conditioning involves associating a behavior with a reward or punishment.
B) Associative learning involves linking one stimulus with another.
C) Behavior can be modified by learning, but some apparent learning is due to maturation.
D) Imprinting is a learned behavior with an innate component acquired during a sensitive period.
#Question id: 1811
#Unit 4. Cell Communication and Cell Signaling
The first wave of fetal γδ T-cell receptor cells in mouse colonize the:
#Question id: 33114
#Unit 1. Molecules and their Interaction Relevant to Biology