Anaphase I begins when the two chromosomes of each bivalent (tetrad) separate and start moving toward opposite poles of the cell as a result of the action of the spindle. Notice that in anaphase I the sister chromatids remain attached at their centromeres and move together toward the poles.
Answer:
The answer is Physical. Physical immunity occurs when a person immune system responds to antigen.
Explanation:
When it gets to the it grows warmer and some of the ices heat up and become gas (sublimating), relaying the dust grains that were trapped in the ice. The dusty gas coming from the nucleus is heated by the sun and for,a a glowing hit cloud around the comment called coma.
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Answer:
Quartz has a hardness of 7.
Explanation:
On Moh’s Scale of Hardness, the quartz mineral takes place on the seventh hardest mineral. So the answer would be A-Equal to 7.