The answer is C oxygen.
Hope this helps.
Answer:
Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes.
Blueberry: 1st Trophic Level
Rabbit: 2nd Trophic Level
Snake: 3rd Trophic Level
Cat: 4th Trophic Level
Hope this helps :P
plz give me the brainliest if it does : )
