A 6.0kg block rests on top of a 7.0kg block, which rests on a horizontal table. (Hint: change in direction but same magnitude) a. What is the force (magnitude and direction) exerted by the 7.0kg block on the 6.0kg block?

b. What is the force (magnitude and direction) exerted by the 6.0‐kg block on the 7.0‐kg block?

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

human-caused climate hope this

option c is the correct answer.