The embryo will leave the oviduct to the uterus as a * 4 cells
3 cells
2 cells
hollow of balls

4 cells

Explanation:

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it’s lava came from an explosive eruption

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