The part of the atom that carries a positive charge is the , and the part that carries a neutral charge is the

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells

Which is the best example of plant tissue? the answer is d (just took the test)