Why might so many different organisms develop different traits but continue to have similar stages of early embryo development?

not the best question format lol but what i think might as scale color is controlled by a single gene with two alleles, the green allele and the yellow allele. when moths that are homozygous for green scales are mated with moths that are homozygous for yellow scales, 100% of the offspring have green scales.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

c. is the correct answer

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.