Answer:
D. independent; dependent
Explanation:
The dependent variable is the variable that is being measured during the course of an experiment. It represents the variable that changes with the manipulation of other variables.
The independent variables are variables which are varied or manipulated during the course of an experiment. The effects of their variations are measured on the dependent variable.
<em>In this case, the interval between the bell and presentation of food was varied and the effects of the variation was measured by determining the amount of salivation.</em>
Hence, the interval is the independent variable and the amount of salivation is the dependent variable.
The correct option is D.
Answer:
It is example of Closed system
Answer:
Depends
Explanation:
If you play baseball on a team then yes if you don't and you play on your free time then no it isn't work because your doing it for fun now if you do it on a team then you are working with your team and winning as a team
1 and 4 are tire.
2 and 3 are not.
