Why does the spinal cord develop before the limbs?
A. The muscle fibers of the arms and the legs directly attach to the spinal cord.
B. Hormones are secreted along the spinal cord to regulate arm and leg development.
C. The nerves must be in place before infants can gain control over their arms and legs.
D. The spinal cord provides structural support for the rest of the body.
Answer: C
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a. there were only Californians in the sample. b. the sample was too small. c. the sample only included whites. d. rural residents were over-represented.
Kinetic, Inc. is an assessment center that was recently built in a nearby business park. Curious about its purpose, you look up the company's website and learn that the main purpose of this assessment center is to
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John B. Calhoun observed many pathological rat behaviors in the high-density conditions of his study. The behaviors were defined as "deviant" because rats do not normally behave in these ways in their natural habitat. Which behavior would NOT be considered deviant in these high-density conditions?
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The majority of old people are socially isolated
Indicate whether the statement is true or false.