Explain how the daily energy needs are different between the zebra and its predator, the lion. Be certain to include any important differences in the digestibility of these organisms' food sources, along with differences in digestive tracts. Cite any behaviors that may play a role in energy use as well.

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell