A. If you have several samples of liquid and are told that one contains living organisms, what type of in vestigation would you do to determine which liquid contains the living
things?

(Aerobic and anaerobic respiration)

Explanation:

Respiration by living organisms can be investigated by carrying out experiments to show the production of carbon dioxide and heat.

Investigating carbon dioxide production

Limewater turns milky in the presence of carbon dioxide. It can be used to show that exhaled air contains more carbon dioxide than inhaled air.

Carbon dioxide dissolves in water to form a weakly acidic solution. Hydrogencarbonate indicator is used to show the presence of carbon dioxide in solution. It is:

red at neutral pH (no carbon dioxide)

yellow at low pH (carbon dioxide present

Lol idk

Step-by-step explanation: