Which of the following blood types is the universal blood donor?
A) O negative
B) A negative
C) AB negative
D) B
A
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Vitamins are precursors for ________. Name two vitamins that are required for metabolic reactions.
What will be an ideal response?
Which of the following statements concerning cells is incorrect?
a. cells serve as the living building blocks of the body. b. the average human cell is about one hundred times smaller than the smallest particle visible by the unaided eye. c. inanimate chemical molecules are organized within each cell into a living entity. d. cells are generally colorless and transparent so they must be stained for visualization under a microscope. e. the three major subdivisions of a cell are the plasma membrane, the nucleus, and the cytoplasm.
Why does a rise in blood pressure tend to cause swelling, especially in the feet? Why does Kwashiorkor (protein deficiency) also cause swelling?
What will be an ideal response?
Which substance causes an increase in the blood calcium level?
A. Calcitonin B. Growth hormone C. Parathyroid hormone D. Sex hormones E. Vitamin D