The smallest unit that carries out all the basic functions of life is a ________.
Fill in the blank(s) with the appropriate word(s).
cell
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Why is it possible for a person with type A negative blood to have a negative reaction when receiving a transfusion of whole type O negative blood?
A. Some type O cells possess B agglutinogens on their surface. B. The Rh factor would cross-react. C. Blood transfusions can only occur within the same blood group. D. The type O blood may have high enough levels of anti-A antibodies that could cross-react with the recipient's cells.
In the excitement phase, the uterus rises from its forward-tilted (anteverted) position.
Answer the following statement true (T) or false (F)
Which of the following is NOT a membrane lipid?
A) phospholipids B) sphingolipids C) cholesterol D) All are membrane lipids.
Which of the following subatomic particles are shared by two atoms to form covalent bonds?
1. neutron 2. electron 3. proton a) 1 only b) 2 only c) 3 only d) 2 & 3 only e) 1, 2 & 3