The cells surrounding milk-producing cells in
the female mammary gland contract shortly
after the female hears the cry of an infant. This
is an example of
a. a response that is not a behavior.
b. instinctive behavior.
c. imprinting behavior.
d. learned behavior.
e. a time-dependent form of learning.
B
You might also like to view...
Photosynthesis ceases when leaves wilt, mainly because _____
A) the chlorophyll in wilting leaves is degraded B) flaccid mesophyll cells are incapable of photosynthesis C) stomata close, preventing carbon dioxide from entering the leaf D) photolysis, the water-splitting step of photosynthesis, cannot occur when there is a water deficiency E) accumulation of carbon dioxide in the leaf inhibits enzymes
Fungi exist mainly in the form of slender filaments, barely visible to the naked eye, which are called _______.
Fill in the blank(s) with the appropriate word(s).
The primers in PCR are
a. fragments of mRNA. b. designed to base pair with mRNA. c. free nucleotides. d. radioactive. e. none of these
Gasoline will not burn in your car's engine unless it is ignited with a spark from a sparkplug. In this situation, the spark is providing:
A) hydrolytic energy. B) activation energy. C) entropy. D) enzymatic energy. E) coenzyme energy.