Answer:
As the variables are not given, let us help with general explanation on manipulated variable.
Explanation:
A manipulated variable is an independent variable. In a scientific experiment, an independent variable can be described as a variable which can change naturally or which is changed by the researcher to check its effect on the dependent variable. The dependent variable is the variable which is under study and being tested.
For example, to check the difference in photosynthesis rate by light, the amount of light will be the independent variable and the rate of photosynthesis will be the dependent variable.
Answer:
they mine for hard materials in Florida so it would be, b,c,e.
Explanation:
Answer: if the endoskeleton reverers to the primary frame of an animal, then the endoskeleton is located down the center of the body.
Answer:Scientific research is the investigation or examination performed by applying systematic scientific methods to obtain, analyze, and interpret the data. The sample size of the population plays a crucial role in research. The phrase that limits the accuracy of the research is:Option A: A sample size of 300 peopleScientific studies are advantageous when:It is conducted on large population size. The number of individual users in the research is used to calculate the set of statistics.The large sample size allows the scientist to better understand and average the values of data. The large population size also helps in neglecting the errors, which can be frequent on the small population size. The maximum size of the population is usually 10percent of the total population. It can be calculated as the total population of 200,000, the 10% will be 20,000. Thus, for the scientific study conducted by Marcus, the sample size of 300 people will limit the accuracy of the experiment.
Explanation:
Answer:
Electric current is the flow of electrons and they carry negative charge so electrons inside an atom repels the flow where as a proton attracts the flow.
Explanation:
- Electricity is the process of flow of electrons. During the flow these electrons share bonds or even transfer them.
- These electrons get energy when the potential difference is applied to a conductor that is moving in the direction from low to high therefore, the electrons move from one to another creating electricity.
- Though the electron repels the continuous flow but proton develops the force of attraction.
