What is the composition of the asthenosphere?
O All the water on earth
Partially melted rock with a higher percent of Iron than the crust
All solid iron and nickel
The continental bedrock and ocean floor

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

a compound light microscope is used to magnify objects in steps.  

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