1. What coordinated functions are carried by the respiratory system and circulatory system?

I. Respiratory system breaks down food into smaller units

II. Respiratory system provides oxygen to the blood and removes gaseous wastes

III. Circulatory system distributes oxygen and nutrients to the different parts of the body

IV. Circulatory system provides support and framework

A. I and II

C. I and IV

B. III and IV

D. II and III

2. What happens to the gases when the blood enters the lungs?

I. Blood leave the lungs

II. Oxygen enters the bloodstream

III. Carbon dioxide leave the bloodstream

A. I only

B. II only

C. III only

D. II and III

3. Complete the pathway taken by air during inhalation.

Nostrils----Pharynx---Larynx------______-------Bronchioles----Alveoli

A. artery

B. bronchi

C. capillary

D. neurons

Pa help..
Sorry kung marami​