Why would a predominately meat-based diet be a severe restriction on the possible size of the human population?
A) The hormones found in beef have a negative effect on human fertility.
B) Such a diet would shorten the average life span of humans.
C) There is not enough biochemical energy available at that trophic level to support a very large population.
D) The land area taken up by livestock would prevent people from finding new places to live.
Question 2
Does a carbohydrate contain water?
A) Yes, a carbohydrate is made from water and carbon dioxide, so it must contain water molecules.
B) No, a chemical product is uniquely different from its chemical reactants.
C) Only sometimes because water binds to the carbohydrate only under certain conditions.
D) No, water is not involved with carbohydrates.
Large male size and mating success.
The human embryo
Group Size
Systems and Organs of the Human Body
A well-balanced, healthy diet
The regions of the human X chromosome distinguished by its banding pattern