The protective outermost layer of the esophagus is the ________
Fill in the blanks with correct word
adventitia
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Why is profuse sweating on a hot day good, and yet a potential problem?
What will be an ideal response
Which of the following does not occur during the follicular phase of the ovarian cycle?
a. the proliferative phase of the uterine cycle b. the menstrual phase of the uterine cycle c. estrogen secretion d. progesterone secretion e. FSH and LH secretion
People with type "O" blood are considered "universal donors" for transfusions because __________.
a) they usually have very strong red blood cells b) their blood lacks A and B agglutinins c) their blood is plentiful in A and B agglutinins d) their blood lacks A and B antigens
A chemical formula expresses ________.
A. the number of atoms for each element in the molecule B. the chemical composition of a molecule C. the atoms involved in chemical bonding D. All of the choices are correct.