Gas exchange occurs at the alveoli in the lungs and takes place by diffusion. The alveoli are surrounded by capillaries so oxygen and carbon dioxide diffuse between the air in the alveoli and the blood in the capillaries.

3 0

3 years ago

Do dolphins understand the difference between seeing another dolphin in front of them, and seeing their own reflection? *

uysha [10]

Answer:

um no I dont think so

Explanation:

3 0

3 years ago

Is your ear canal connected to your brain?

Lana71 [14]

Yes, your ear canal is connected to your brain.

7 0

3 years ago

Someone knows this can help with this

Vikentia [17]

Explanation:

sensory so hard but I will try

4 0

3 years ago