neurotransmitters is the answer
The writing materials,the envelopes and the stamps are all made of paper and this led to a great waste as the papers have to be disposed after use. This is not the case with electronic mails. Electronic mails do not need paper at all and it has drastically reduce the amount of papers that is used in writing letters.
I hope this helps :)
Answer:
A - longleaf woodocoats, water oaks
Explanation:
Rhis is because primary consumers eat plants and not other animals.
