C...the key is that they are photosynthetic...so they produce oxygen (like plants)!
Answer:
Carbohydrates
Explanation:
Carbohydrates are made up of carbon, hydrogen, and oxygen make up carbohydrates. These biomolecules are the primary sources of energy of living things, including humans. They are found in living organisms in the form of sugars, fibers, and starches. There are different types of carbohydrates like monosaccharides, disaccharades, and polysaccharide.
Matter that is not used by consumers in the food chain become "detritus". Detritus, meaning debris or waste, are materials that are missed or uneaten by consumers. Because they do not participate in higher trophic levels, these materials are left to decompose. Detritus is often considered the "missing mass" when measuring the total mass in the food chain.
C.Glucose
The stomata of plants will close during hot and dry day. This cause a decrease in concentration of carbon dioxide and increase in oxygen concentration in the plant. Photorespiration occur.
As carbon dioxide in photosynthesis is used to produce glucose molecules, the production of glucose molecule will decrease.
