While the human brain makes up only _____ of the bodys weight, it requires about _____ of the bodys resources when at rest.
a. .75; 8
b. 2; 15
c. 4; 25
d. 7; 30
Question 2
Why is it thought that advances such as agriculture, literacy, and urbanization have not been accompanied by additional increases in brain size?
a. The earliest Homo sapiens were as intelligent as contemporary humans.
b. Although brain size has remained constant, brain density has increased.
c. The physiological cost of a bigger brain exceeds its benefit.
d. More efficient neuronal connections account for modern human advancements.
Alien Human
Human Heart
Nine pulse sites on the human body.
Crystal structure of human topoisomerase I in complex with a 22-bp DNA duplex
Distribution of Fluids in a Human Body
Newborns, infants, and children have a high percentage of body weight composed of water...