People who don't exercise get injuries because their body is not used to it so they will not perform well.
For example, on a sunflower, instead of water beading off the flower and falling off, the short hairs end up trapping the water and stopping it from falling and instead able to absorb the extra moisture
Answer:
The answer should be
NaI→2Na+I2. :)
Prevents the injures and the death of available cells
Answer: Gregor Mendel
Explanation: He's the scientist that first studied them and made great progress in genetics.