This the respiratory system!
The major organ of the respiratory system is the lungs, and in the lungs the air gets divided among smaller and smaller tubes at the end of which the oxygen enters and carbon dioxide leaves the blood!
I remember this from last year haha. The dark moths populations will go down since they can’t blend in as well as the light moths.
The circulatory system is used to transfer blood
The living animal, Mrs Nerg, And the seven life proccesses! There are seven Life Proccesses that tell us that animals are alive. Although her name sounds a bit strange, The letters in it stand for life proccesses - movement, Reproduction, Sensitivity, Nutrion, Excertion, Respiration And growth
