Hello to answer your question fully
<span>Archaebacteria
Because, </span><span>Archaebacteria is the oldest type of bacteria, which exist at the beginning of the world back when Oxygen still hasn't exist in its environment
Signed by, Expert Sargedog</span>
A proposal Intend to explain certainly facts or observation
Answer:
Therefore, when an experiment shows that one variable makes another variable change, and no other variables have any effect, the experiment shows causation.
CARBOHYDRATE HELPS TO IDENTIFY CELL TYPES.
Carbohydrates, proteins and lipids are all present inside the cell. Carbohydrates are usually attached to the cell proteins and lipids in order to enhance their functionality. These attached carbohydrates are typically used to identify cells.