If you are not a Diabetic when your blood sugar is low, the pancreas secretes glucagon to trigger the liver to release stored glucose. In diabetics, it works the same but the glucagon must be administered through a needle.
C is your answer.
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: Option D.
Crystalline and rigid.
Explanation:
When liquid freezes to ice, it becomes solid and this is crystalline and rigid because a solids for crystals which means solid atoms, molecules or ions are orderly arranged in structures which form of crystal lattice in all sides. The structure of solid becomes rigid , it does not take the container shape like liquid and it does not expand also like liquid. it volumes reduces.
The molecules in the water slow down so much that the attractions put them into fixed positions
Symbiosis...fungi exchange his nutrients and minerals from soil with solar energy from the plant