Nonrenewable sources deal with fossil fuels (coal, petroleum, etc) so renewable would be the sun, water, wind, things that can be replaced
Answer: Nerve cell
Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process.
The answer is: A. collecting data
During this process , researchers would use their observational skills and record every notable occurrence that happen to the variables.
The focus on this process is simply to add all relevant data without making any analyzation. That process come later on after the researchers started to change the variables in order to see whether it would create a correlation.
the male reproductive system consists of external organs. while the female reproductive system consists of internal organs.
