Which group contains only molecules that are each assembled from smaller organic compounds? proteins, water, DNA, fats
2.
proteins, starch, carbon dioxide, water
proteins, DNA, fats, starch
4
proteins, carbon dioxide, DNA, starch

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water

Skulls of homo sapiens were found during an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are ( 1 ) fossils. ( 1 ) a. mineralized b. mold c. original-tissue

"does stress during a woman's first trimester of a pregnancy affect the infant's birth weight? " is a