The image below is a scientific model of a human heart that can be found in a classroom or doctor's office Which opon below best identificare benefit and one motion of the above model

i would have a lunch. it's one big package of food, making it one food. : p

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