Intermediary molecules that accept electrons and transfer them to another molecule are called. coenzymes.
Answer:
Venus
Explanation:
The order is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
Planet A is in the second ring which correlates with Venus
When people used stone tools,
The in-between period of time when the first man appeared and when man developed a writing system. Or the period of time before man became literate.