The answer is D. multiple alleles
I think it’s distance traveled
Most insects are herbivores in a stage of their life, but most of the time later on they because omnivorous (plant and meat eater) so therefore they don't stay herbivorous for long. Also, most herbivorous insects get eaten quite often.
Explanation:
1. Most autotrophs use a process called photosynthesis to make their food.
2. Carbon Dioxide and water are the raw material for photosynthesis.
3. This is a trick question because nitrogen is part of oxygen, so the answer is definitely oxygen.
Hope this helps! :)
B
Now lol I have an A+ in that class