A. the allele changed from being dominant to being recessive.

b. the allele became less frequent than the alleles for longer tail lengths.

c. the allele changed from being autosomal to being sex-linked.

d. the allele began to code for long tail lengths instead of the shortest ones.

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Solutions to environmental problems in europe must