A student unpacks his lunch and spreads out the potato chips on the brown paper lunch bag. Within minutes the student notices translucent spots on the lunch bag. The translucent spots on the lunch bag indicate the potato chips contain which organic molecule?

carbohydrates

proteins

lipids

nucleic acids

Which characteristics are typical of a human population in the postindustrial stage?

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?