Which of the following is true about the behavior of an organism?
A.
The behavior of an organism is influenced only by the environment in which it lives.
B.
The behavior of an organism is not influenced by either its heredity or its environment.
C.
The behavior of an organism is influenced by both its heredity and its environment.
D.
The behavior of an organism is influenced only by the traits it inherits from its parents.

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.