Really, none of these answers are good. leukocytes are the body's general immune cell, and lymphocytes are a type of leukocyte. Antibodies are only used when fighting an infection that your body already has experience with, so I'm guessing it you have to pick from these answers, its "lymphocytes", but it's not really the best answer.
Never feel cold again, yet if you don’t sweat you can’t burn calories as easy.
The first one is b
Question 10 is Heart rate
Question 12 is perimeter
Thats all i know sorry
Answer:
A form of high intensity interval training, CrossFit is a strength and conditioning workout that is made up of functional movement performed at a high intensity level.
Explanation: