The inner lining of the uterus that is shed at menstruation if fertilization has not occurred is called the ____
a. cervix
b. endometrium
c. oogonium
d. chorion
e. epididymis
b
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Which of the following do not induce a strong immune response?
A. Lipids B. Proteins C. Polysaccharides D. Simple sugars. E. Lipids AND simple sugars.
A seasonal reaction to inhaled allergens is ________.
A. eczema B. allergic rhinitis C. asthma D. anaphylaxis E. atopic dermatitis
Why do sex hormones and other steroids take much longer to produce their effects than nonsteroid hormones do?
A) Steroids are bigger, slower molecules. B) Steroids must usually be carried longer distances by the blood. C) Steroids must relay their messages via relay molecules. D) Steroids cause target cells to make new proteins, which takes time.
The p53 gene is a tumor-suppressing gene that prevents damaged cells from undergoing cell division. If this gene ceases to function due to a mutation, what will happen to the cell?
A) Tumors will be suppressed. B) The cell will be prevented from undergoing division. C) The cell will die. D) Uncontrolled cell division will occur.