Most food chains have no more than six organisms. why is there a limit to the number of links in a food chain?
a. animals at the end of the food chain would have too much food available.
b. animals at the end of the food chain would not get enough food to stay alive.
c. animals at the beginning or start of the food chain would have too much food available.
d. animals at the beginning or start of the food chain would not get enough food to stay alive.

4. rat liver is able to metabolize glucose by both the glycolytic and the pentose phosphate pathway. which of the following are properties of both the glycolytic and pentose phosphate pathway? a. nad+ is involved b. co2 is liberated c. phosphate esters are intermediates d. glyceraldehyde 3-phosphate is an intermediate e. fructose 6-phosphate is an intermediate4. rat liver is able to metabolize glucose by both the glycolytic and the pentose phosphate pathway. which of the following are properties of both the glycolytic and pentose phosphate pathway? a. nad+ is involved b. co2 is liberated c. phosphate esters are intermediates d. glyceraldehyde 3-phosphate is an intermediate e. fructose 6-phosphate is an intermediate

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance

Approximately what wavelength of light is best absorbed by chlorophyll a