Answer:
Option a
Explanation:
Random selection or random sampling from a given population is the most appropriate way, especially in experimental studies. This method is simple and accurate. According to the above-mentioned case, if the researcher selects students randomly for the experimental and control group, then each of them would have an equal chance of selection. Hence, the results would be generalized and not biased.
Answer: A. true
Explanation: Each crab lives in a different habitat according to the environment in that habitat. If you were to move a Ghost crab to water, where the blue crabs live, it would be easy to see, and would most likely not be able to survive fully submerged in water.
Basically because the flu shot is a stream of the flu. And when your body gets injected with it. It helps your body to become immune or able to fight the flu off quickly because you have had a little of the flu in you already.
I hope that made sense.... <span />
They speed up to help use more of the fat
