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pickupchik [31]
3 years ago
13

What is the “fluid-filled sac” that cushions the embryo?

Biology
2 answers:
MAVERICK [17]3 years ago
5 0
The answer is A. Amniotic sac
babunello [35]3 years ago
4 0

Answer: The answer is A.

Explanation:

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What rule of magnetism is illustrated by the lines of the iron filings with unlike poles?
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Answer:

The rule of magnetism illustrated is the field lines are more concentrated at the poles and also about the direction of magnetic field.

Explanation:

  • Every magnet has two pole, north pole and south pole. The like poles repel each other and unlike poles attract each other.
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  • When the iron fillings are kept near the bar magnet, we observe that most of the fillings are attached to either poles.
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