Answer:
a diagram, speech photos and classifications
Explan
Answer:
D is the right answer.....
Answer:
Photosynthesis
Explanation:
Carbon Dioxide is from the air and then release oxygen gas.
The reason was made because they wanted people to be able to come and leave from china
Answer: respiratory control centers
Explanation: respiratory control centers: The medulla which sends signals to the muscles involved in breathing, and the pons which controls the rate of breathing.The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur.
