Answer:
Because it is also one of the larval stages in some other groups of invertebrates, and are used by biologists to deduce evolutionary relationships among different groups of invertebrates
Explanation:
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Answer:
The crust forms at the ridge and is carried away by the movement of the plate as new crust forms to take its place. The oceanic crust is youngest new a mid ocean ridge and oldest far away from it.
Explanation:
Answer:
MRI = Electromagnet
Moon = Not magnetic
Compass = Permanent magnet