Paleontologists Have Inferred Bipedalism in Hominins from Which of the Following

question 12

Multiple Choice

Paleontologists have inferred bipedalism in hominins from which of the following structures in humans as compared to chimpanzees?

• A) Humans have both ends of the femur larger than chimps, and a smaller angle at the hip end of the femur than chimps.
• B) Humans have both ends of the femur smaller than chimps, and a smaller angle at the hip end of the femur than chimps.
• C) Humans have both ends of the femur larger than chimps, and a larger angle at the hip end of the femur than chimps.
• D) Humans have both ends of the femur the same chimps, but a smaller angle at the hip end of the femur than chimps.

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Definitions:

CS

An acronym that stands for Conditioned Stimulus, a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

CS

Stands for Conditioned Stimulus, an initially neutral stimulus that, after being associated with an unconditioned stimulus, triggers a conditioned response.

US

In the context of conditioning, this stands for the Unconditioned Stimulus, which automatically triggers a response without prior learning.

Classical Conditioning

A systematic method of pairing two stimuli repeatedly for learning; initially, the response comes from the second stimulus but ultimately comes from the first stimulus alone.