The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. <span>A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth. </span>
Answer:Weathering
Explanation:the rock is being broken down by the bunny and eventually splits
Reaction toactivation energy biological cells
Answer:
The body can still get glucose from food, but the glucose can't get into the cells, where it's needed, and glucose stays in the blood. This makes the blood sugar level very high. ... When this happens, it may no longer be able to produce enough insulin to keep blood sugar levels where they should be.
