The correct answer is that the shells of clams and other mollusks dissolve when the pH becomes more acidic.
This is because the shells of clams and other mollusks are made of calcium carbonate that is dissolved in acidic conditions. The pH needs to be low to dissolve calcium carbonate into it. It takes few days to dissolve the shell completely.
<span>If an object is accelerating then the forces applied on them are unbalanced, balance forces will cause the object to remain stationary or move at a constant velocity.</span>
Answer: 1.chromosomes, 2. Histones, 3. prokaryotes have one chromosome, 4. A sugar phosphate backbone with nitogen bases in the middle. 5. Chromatin
Explanation: Chromatin
Chemical composition and physical properties
