Wolf spiders carry their young on their backs. how does this in their survival? it provides care to the young. 1) it in finding a mate. 2) it makes looking for food easier. 3)it makes the spiders less vulnerable to predators. 4) it intimidates other spiders.

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