The diagram represents an energy pyramid. At each successive level, going from grasses to lions, the amount of available energy

a. increases then decreases
b. remains the same
c. increase only
d. decrease only

Lions
Zebras
Grasses

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

c is the answer to this question. altitude affects the weather because air molecules evaporate.

look at this it will give you up to 17 answers  

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.