<span>Controlled variable is a variable that was made constant in the research. That was because the controlled variables can influence the dependent or independent variable. If the variables is not made constant, it can alter the research result and made it invalid.
In this case, </span>the caffeine and alcohol intake might alter the physical activity or the blood glucose so it should be controlled.
B
Anaerobic respiration produces ethanol in plants and some other organisms and lactic acid in animals
D) when cells are express different genes
Answer:
1. Eukaryotic
2. Eukaryota
Explanation:
1. Eukaryotic- The newly found species has a cell wall and contains membrane-bound organelles. The presence of membrane-bound organelles shows that the cell is a Eukaryotic cell.
2. Eukaryota- the species is single-celled with the presence of cell wall without peptidoglycan. This shows that the species could belong to the Eukaryota domain proposed by Carl Woese.
Thus, 1. Eukaryotic and 2. Eukaryota is the correct answer.
