Explanation:
A stem cell is a cell with the unique ability to develop into specialised cell types in the body. In the future they may be used to replace cells and tissues that have been damaged or lost due to disease.
African elephants flap their large ears to cool off represents B. Relationship of structure to function
The African elephants flap their ears in the air to cool off the blood that flows through them. It's working like a fan. The elephant is ada<span>pting to the environment's temperature.</span>
A frog... (Egg,tadpole,froglet,adult)
When a child is taken to the hospital they are out of their regular routine and are some place unfamiliar . They are not familiar with anything so a familiar object may calm their nerves and give them a since of security
