Comparative suggests organisms that are more closely related have more similar embryo development.

Comparative anatomy suggests that organisms that are more closely related have more similar embryo development. This is because comparative anatomy is literally the science/study of similarities in the anatomies of organisms. Organisms that are more similar (i.e. have more homologous structures) tend to develop more similarly; otherwise, their structures would be rather different (hence why a plant and a person are not similar and do not develop similarly).

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The salt in the sea water dehydrated the sailor because her body could not take in the amount to salt in the sea water

It would be 232.4242