The heart pumps blood through blood vessels to reach all areas of the body. together, the heart and blood vessels form a(n

answer; hypnagogic sensations)

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

silty loam

hope this

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.