Question

Fill in the blanks.
1. Internal respiration is also known as ____ respiration
2. The diffusion of gases in humans occurs in the____
3. The______
and the muscles of the ribs contract during inhalation.
4. Haemoglobin combines with oxygen to form____
5. Insects have a network of tiny tubes called_____
for breathing​

Answer 1

Answer:

1) Cellular respiration

2) Body surfaces

3) Diaphragm

4) oxyhaemoglobin

5) tracheae

Explanation:

no need to explain anything...