What hamsters are the parents of the mystery hamster

one centimetre is equal to 0.01 metres

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

i wish i could with all of them i can barley see the first one so here's the answer to the first one b