A computer simulation shows molecules of a substance moving faster and faster as one of the variables is changed. What inference can be made about which variable is acting on the substance? A.
The mass of the substance is being increased.

B.
Heat is being added to the substance.

C.
Heat is being removed from the substance.

D.
The volume of the substance is being reduced.

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Explanation:

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

straight or amphibians are homeothermic to thermal