<span>They convert sunlight into chemical energy.</span>
Birds and mammals independently evolved four-chamber hearts
It could have the most direct effect on the amount of mitochondria in cells and also the system of the membrane.
<span>Water heats up, changes to water vapor and evaporates, rises into the sky. It cools, condenses, turns back into liquid water forming clouds. Then it falls back to earth as precipitation and runs down hills or mountains during runoff and returns to lakes and oceans.
I think i`m not sure :)</span>
