Which of the following explains why herbivores need to graze throughout the day?
small plant cells are absorbed quickly and efficiently.
plants release few nutrients and take longer to digest.
o most herbivores have a high caloric requirement for survival.
plant eaters have simple stomachs that take longer to process.

Disney, viacom and aol time warner are examples of

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.