<span>The answer to the question stated above is letter A. hardness
Calcite will scratch gypsum. This is an example of the physical characteristics called hardness.
additional information....
</span>> Muscovite mica will peel off in flat sheets. This is an example of the physical characteristic called <span>cleavage.
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Best Answer: A satellite in a polar orbit passes over both poles, but the earth rotates beneath it. The time taken for each orbit of the earth depends on the height of thsatellitete. If the satellite is in a circular orbit 260 kilometers above the surface it will have an orbital period of two hours.
The portion of a sperm cell that contains digestive enzymes for penetrating he egg is called the acrosome.
I hope this helps.
I’m not too sure I think it’s A
<span>The molecules that provoke a specific immune response are called antigens.
</span>This molecule initiates the production of an antibody and causes an immune response. T<span>oxins, chemicals, bacteria, viruses, or other substances that come from outside the body can be part of the antigens.
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