Answer:
Humans
Explanation:
we breathe in air and release carbon dioxide.
Answe: The cells in flask B will have grown significantly, but the cells in flask A will have not grown at all.
Explanation:
Conditions for the growth of mammalian cells and non animal Cells are different.
For bacteria cells, shaking will be required which allows oxygen to freely enter the cells and provide more nutrients to promote growth. However, this is not the same for animal cells.
When culturing mammalian cells, a CO2 incubator running at 37° C is required as opposed to non-mammalian cells that can be grown in a non-CO2 or dry incubator.
B. theory
if many people perform the experiment and conclude the same things/ come to the same results, the hypothesis then becomes a theory. A theory is an idea that is widely accepted as true, but not 100% proven factual (ex: the theory of gravity)