Answer:
Producers perform photosynthesis so that consumers have food.
Explanation:
Producers create food from sun, water, and air. They can not eat any other animals because they are too small. They compose photosynthesis so the consumers can get energy from the food they eat, and the food web can continue. Hope this helps!
Answer:
The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a product.
In order to "invest" in later stages to get more energy per glucose molecule. It could also be because that is how it is done, it wouldn't be as efficient unless these stages were performed.
hope this helps!
I only know what question 5 is which is D. Sorry:(