Answer:
D)
Explanation:
Because the independent variable stays the same for all the people in the experiment
Answer:
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
Lipids help allow the body to survive because they store energy, the insulate and protect, they help with digestion and absorption, they help with the cell wall structure and lastly, they help hormone production along.
Answer:
What language is this?...
Carbon dioxide is a compound.
