Pretty sure the answer is potassium. Hope that helps:)
- helps protect internal organs and fragile body tissues eg. : the cranium protects your brain and eyes and the ribs protect your heart and lungs.
A the greater number of progeny that results
Answer: Here's The Cell Cycle Concept Map
<u><em>Turtles are reptiles of the order Characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield.A turtle is faaster than a human,But it shell is heavy,and its house.</em></u>