How is cellular respiration related to photosynthesis

Photosynthesis and cellular respiration are complementary biochemical reactions.

Explanation:

Photosynthesis requires the products of respiration , while respiration requires the products of photosynthesis.

My brain doesn't completely understand this topic, but here's what I know:

Celluar Respiration creates carbon dioxide, photosythesis takes this carbon dioxide and turns it into oxygen.

Celluar Respiration is considered the opposite of photosythesis.

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.