3 - Exposure to radiation
Radiation ionises cells and can cause mutations in genes.
The rest of the options have no affect on genetics at all, merely a temporary affect on the physical aspects of the body, such as heart rate etc.
If you mean the xylem pump, then after the ATP attaches to it the water can travel trough the xylem tube and get to the stomata and through osmosis travels through the semi-permeable membrane allowing it to open and allow to get In for photosynthesis
Answer:
they are not permanently altered by the reaction they catalyze
<span>grass → rabbits → snakes → hawks. This chain supports the assumption that each population supports the next tropic level
because it tells about the next tropic level and flow of energy from one to the next
so correct option i conclude is A
hope it helps</span>
