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.

Which technically is nasa developing that will astronauts reach mars

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition.b) one-fourth of the daughters of an affected man would have this condition.c) one-half of the daughters of an affected father and a carrier mother could have this condition.d) only if a woman is xxx could she have this condition.