I would think the answer is B.) All species share a common ancestor and that change occurs through time.
- I've recently went over this again with my teacher. I hope this helps! (:
The cramps occur when muscle cells respire anaerobically. The partial breakdown of glucose produces lactic acid. The accumulation of lactic acid causes muscle cramps.
Answer: energy can be cycled in two directions
Explanation: The arrows show the direction of matter and energy flow and should be two
<span>Southern generals remained able to engage Union forces without additional troops or supplies. </span>
