It will be 1 and 2.
This is not biology. This is Science.
Answer:
Therefore,when carbon monoxide is present,it blind to hemoglobin preferentially over oxygn.As a result,oxygen cannot blind to hemoglobin ,so very little oxygen is transported through the body carbon monoxide is a colorless odorless gas and is therefore difficult detect.
Arterias, venas y capilares.
Atoms are the smallest unit of non-living things and CELLS are the smallest unit of living things.
