I'm not sure about the first two but I think the one about the halite crystal is cubic. :)
D is the right for the question I guess and I got it right
Dehydration synthesis :) it means that monomers (like glucose or lactose) when bonded together release water molecules
Answer:
when carbon dioxide level goes up.temp. goes down.and vice versa
Every time you eat a cookie or candy bar, your blood sugar increases. This triggers an increase in the hormone insulin. Insulin<span> is a hormone made by the pancreas which allows your body to use sugar (glucose) from carbohydrates in the food that you eat, or to store glucose for future use. </span>Insulin<span> helps keeps your blood sugar level from getting too high (hyperglycemia) or too low (hypoglycemia).</span>