Question

___ is a by-product of respiration while ___ is a by-product of photosynthesis.

A). Carbon dioxide
B). Oxygen

Answer 1

The answer you are looking for is: Carbon dioxide is a by-product of respiration while oxygen is a by-product of photosynthesis

Step-by-step explanation:

Because yes!! Also I hope you have a wonderful wonderful day!! :D

Answer 2

Carbon dioxide is a by-product of respiration while oxygen is a by product of photosynthesis.