So, this morning I went to tuition that is (15 mins) away from my house and I went at 11:00am until 12:00pm. I only do the subject Science and me and my class did Biology - Exchange Surfaces.
I learnt quite a lot.
- Alveoli are air sacs in the lungs and they have a very large surface area.
- They have a very good blood supply.
- Oxygen diffuses from the air sac into the blood.
- Carbon dioxide diffuses from the blood into the air sac.
I have very nice and friendly friends there and I have a lot of fun there as well.
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Also, I kind of need help from you lovely people for my English Listening and Specking Speech.
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