If ctenophores are sister to all animal taxa, excluding cnidarians and placazoans, then: (Select all that apply.)a) ancestral sponges exhibited morphologic complexity seen in other Eumetazoans. b) the anatomical complexity of ctenophores arose independently of what is found in other Eumetazoan groups. c) the nervous system of ctenophores evolved independently of other animals. d) radial symmetry was lost in placazoans. e) None of the answer options is correct.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.