in addition to keratinocytes, the stratum spinosum also contains another epidermal cell type called epidermal cells that help to fight infection.

answer; i believe the correct answer is (data); /// good luck

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).