The Role of blastula is Blastula is this and that and Yh they should gather everyday to stage the Animals
Answer:
When the plates are at the mid ocean ridges thay are spreading apart creating new ocean floor. this is also called a divergent boundary
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Your question: What substance is considered a building block for all living things?
Your answer: Carbon is the substance that is considered s building block for all living things.
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Answer: the tails are hydrophobic and the heads are hydrophilic