What is the density of a mineral? (1 point)
the ratio of a mineral's mass to its volume
the ratio of a mineral's height to its weight
a mineral's mass
a mineral's volume

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

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