Carbon dioxide is a byproduct of respiration while oxygen is a byproduct of photosynthesis.
Remember that a byproduct is a secondary product that is made in the synthesis of another. It is unintended and excreted.
Answer:
the density is 3.
Explanation:
Hope this helps:) if it does plz mark me as brainliest
Replicates it's DNA, making two copies of each chromosome, an that will be called sister chromatids.