Albert, a student researcher, varies the amount of food given to rats in an experiment to measure the effect on their learning behavior. In albert's study, the amount of food given is the independent variable.
An independent variable is under the control of the experimenter. Independent variable does not depend on the other variables involved in the experiment. Since the amount of food is varied, it is not depending on other variables like size of mice, weight, etc.
ANSWER:
Index Fossils can be used to identify a specific period of time
Answer:
False, the body systems have to work together to maintain homeostasis
Hope this helps!
Answer:
6 water molecules (and technically sunlight/energy)
Explanation:
The inputs of photosynthesis are water and carbon dioxide (and energy); water is used in the light-dependent reactions, and carbon dioxide is used in the light-independent. The water has to be there to replace the lost electrons in the chlorophyll that leave the thylakoids after being excited by the solar energy.
