Without a control group there wouldn’t be any basis for knowing if a result is due to the variable being tested
To correctly document the pulse that is palpated behind the
knee, the healthcare practitioner would document this as the pulse of the
popliteal artery. The popliteal artery extends from the femoral artery and is
located in the knee, at the back of the leg.
Answer:
Independent - Water/Type of water (salt and pure)
Dependent - Height of plant
Controlled - Amount of water
Explanation:
Independent is what the experimenter manipulates (in this case being the type of water.)
Dependent is what the experimenter measures and is a result of the independent (in this case being the height of plant)
Controlled is what you are trying to keep the same (in this case the amount of water you give each plant.)
