Question

1.
________ involves the simple exchange of gases,

2.
The number of times a person breathes in 1 minute is called _________.

3.
_________ and _________
are examples of cold blooded animals.

4.
Inhaled air has ____________% oxygen and
__________% carbon dioxide.

5.
Always breathe through ________ your and not your_________.

6.
_________helps to expel dust particles from the inhaled air,
7.
_________damages the lungs and causes lung cancer
ive one word for the following​

Answer 1

Answer:

1.

________ involves the simple exchange of gases,

2.

The number of times a person breathes in 1 minute is called _________.

3.

_________ and _________

are examples of cold blooded animals.

4.

Inhaled air has ____________% oxygen and

__________% carbon dioxide.

5.

Always breathe through ________ your and not your_________.

6.

_________helps to expel dust particles from the inhaled air,

7.

_________damages the lungs and causes lung cancer

ive one word for the following