Which of the following facts implies that humans and fish had a common ancestor? a. both species are consumers. b. both species have the ability to swim. c. both species must expel waste materials. d. both species have gill slits when they are embryos.

Recombinant dna is the merging of dna from unrelated organisms to create new genetic varieties is assembled in the lab from mononucleotides was part of the green revolution of the 1960s is pollination of one plant by another of the same species is cross-pollination of one plant by a different species