Retroviruses are RNA-based viruses that infect cells. During infection, they incorporate their genome into the host’s DNA. How are retroviruses able to incorporate DNA into a host cell?

It's D

Explanation:

Retroviruses can use their own reverse transcriptase to make a DNA copy from an RNA template before incorporating DNA into the host’s genome.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.