Albino giraffes have white hair. there are very few albino giraffes in the wild. why are there few albino giraffes in the wild?
The phylum with endoderm, mesoderm, and ectoderm is a. Cnidaria. b. Porifera. c. Platyhelminthes. d. all of the above.
Additions or deletions of bases in the nucleotide sequence of a structural gene most often result in (A) an altered sequence of amino acids in the protein that the gene encodes (B) insertion of a new intron into the coding sequence of the gene (C) decreased histone binding (D) decreased excision repair (E) increased levels of mRNA production
All of the following could be considered evidences of evolution EXCEPT (A) the structural homology between the forearms of bats and humans. (B) the DNA sequence of the cytochrome-c gene for bats and birds. (C) the dorsal nerve chord of crayfish and birds. (D) fossils of dinosaurs. (E) a wasp embedded in amber.
which of the following is noy one of the three major types of rocks? a.) anthracite b.) igneous c.) metamorphic d.) sedimentary
