Which fact about fossils is most important to scientists who study evolution?

a) fossils are often found in sedimentary rock.

b) footprints, body structures, and even animal droppings can become fossilized.

c) the age of a fossil can be determined by examining the rock strata in which the fossil is found.

d) the formation of a fossil depends on the geologic and chemical conditions present when an organism dies.

Option C. The age of fossils can be determined by examining the rock strata in which fossils is found.

Explanation:

Fossils are really an amazing thing in determining the evolutionary patterns. It is very much helpful in criminology also.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.