An observation that the higher the air temperature, the lower the activity of test animals would be an example of a
a. negative correlation.
b. positive correlation.
c. causal relationship.
d. zero correlation.
ANSWER: a
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Which of the following statements is TRUE?
a. Heritability refers to the amount of variation in a given trait in a given population at a given time. b. The tendency of given trait to be passed from parent to offspring is called heritability. c. Heritability is a concept that is useful in understanding variation in a specific trait in given individuals. d. Highly heritable traits are not modifiable by environmental factors. e. Heritability refers to the amount of variation in a given trait that cannot be explained by genetic factors.
Which hormone releases the stored form of glucose present in the muscles to provide
energy for strenuous effort? a. Cortisol b. Epinephrine c. Norepinephrine d. Glucocorticoid e. Insulin