I am not entirely sure, but i think it would be the respiratory system because plants produce oxygen after taking in carbon dioxide, and that is similar to the human respiratory system. I am not completely sure though. hope this helps!
Answer:B. Primary consumer
Explanation:The reason why Its b because that primary comsumers are mostly herbivores or the primary comsumer is the first consumer to eat the producer.Hope it helps!
All living organisms need to take substances from their environment to obtain energy, to grow and to stay healthy
C all land on the united stated is publicly owned and may be accessed by the public
B. Half of the total genetic information
