Fossils of the first animals are rare because they a. had hard shells that broke down easily, leaving no trace. b. were large and likely to be eaten by others after they died. c. were soft-bodied and tiny, therefore unlikely to fossilize. d. lived only in volcanic regions, and were destroyed by lava flows.
explain

Anurse is administering a drug that blocks the protease enzyme so new viral particles cannot mature. which category of drugs is the nurse most likely administering

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

Acell goes through cellular respiration and produces atp which it then uses to move a molecule across the cell membrane. how does the energy in the original glucose molecule change during this process? (2 points)