Question

infant rats deprived of their mothers grooming touch produce ____ growth hormone and have a ____ metabolic rate. more; lower less; lower less; higher more; higher

Explanation:

When infant rats are deprived of their mothers' grooming touch, it affects their physiological processes. Grooming touch has a positive influence on the production of growth hormone. Without this touch, the production of growth hormone is reduced (less growth hormone). Also, a lower level of growth hormone is associated with a slower metabolic rate (lower metabolic rate).

Answer:

B. less; lower