The answer would be the second choice, "Central Nervous System"
Answer:
Decrease.
Explanation:
Beavers need trees to make Dams, without Dams they'd be in danger because of other predators.
<span>The inability to recall which numbers on a telephone dial are not accompanied by letters</span>
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.
Answer:
1 détresses in the troposphere inverses in stratosphere