Answer:
B
Explanation:
the constant in biology does not change during an experiment. it is also called the controlled. think of it the same as algebra.
The correct answer is "All of the above are correct"
6000ml I believe hope this helps !!!!!!!!!!!!!!!!!!!!!!!!!
Oxygen and carbon dioxide is exchanged by the millions of alveoli in the lungs and the capillaries that envelop them. we inhale oxygen (which is then exchanged with carbon dioxide in the lungs) and then we exhale the carbon dioxide. although, the air that we breathe usually consists more nitrogen than oxygen.
Answer:
the medulla oblongata
Explanation:
the medulla oblongata is the lower part of the brainstem that connects to the spinal cord.
