Which is not true about
the human brain?
A. The brain is responsible for controlling all
actions in the body
B. The human brain can only create signals
to send out to the body
C. The human brains weighs about 3 pounds
D. The brain can be divided up into many
different sections and each have their
own purpose

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.