The correct answer would be C.seasonal changes in the amount of daylight. Since leaves require sunlight in order to perform photosynthesis to keep the tree alive, when seasonal changes occur where there is not enough sunlight throughout the day, trees go dormant for the season until conditions are right.
Air pollution
hope this helps :)
RNA plays central role in the pathway from DNA to proteins.
Hello there buddy,
Your correct answer would be "protein". Protein is the organic molecule that is needed for a active transport.
I hope this helps.
~Jurgen
