I think C) availability of water is your best answer because alot of organisms count on water as a major resource because they need it to survive so a lack or a gain in the amount of water will majorly effect an ecosystem.
Answer:
the brain helps with moving our limbs and bones such as how im typing this, it helps us remember to blink and breathe and keep our heart pumping blood.
Explanation:
im not actually sure if this is right but i tried, im sorry if its wrong
Veina cause veins grow in you heart
please clearly state what you are asking ????
