Desired response in an organism when presented alone.<span>
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Answer:
Those materials which are not attracted by a magnet are called non- magnetic materials. All the substances other than iron, nickel, and Cobalt are non-magnetic substances for example plastic, rubber, water, etc are nonmagnetic materials. Non-magnetic substances cannot be magnetized.
Explanation:
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Males have a bit of a concave plastron , and females have a flat plastron