I believe the last option is the correct one for the illustration of the single celled organism provides and the environment that it is found living in.
Answer: It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
Explanation:
Answer:
first and third one
Explanation:
animals need the oxygen they make. and animals eat the plants. if an animal doesnt eat plants it eats somthing that does. sorry for the typos.
Answer:
hi what did you get for this one?
Explanation:
B: things made of a single atom
