The answer should be physical.
For example, when water freezes, or melts, or boils, it's a physical change with temperature. However, correct me if I'm wrong.
Hope this helps :)
Answer:
Haemoglobin carries oxygen, therefore, more oxygen can be transported to cells such as muscle cells. More oxygen transported to cells results in more aerobic respiration of cells such as muscle cells.
Pretty sure it is D. Which makes it easier to study a group of species and find out what makes them flourish in that environment.
I think hes just wanted to know if taking breath mint could cure bad breath after eating crabby patty.
I think it would be the third and fourth one