Answer:
If one wants to estimate the cost of living of an individual, then the factors such as salary, age, marital status, etc. are independent variables, while the cost of living of a person is highly dependent on such factors. Therefore, they are designated as the dependent variable.
i think A would be right if they are taking ab the scientific method
Birds, Salamanders and Sharks are all Endotherms and can manipulate their body temperatures.
