Answer: d
The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
Explanation:
Don’t be alone. Hang out with friends.
Wear a bubble.
Answer:
Trypanophobia is the fear of injection.
Answer:
It should be challenging to you
