The outermost layer of the digestive tract, which is composed of a thin layer of areolar tissue and simple squamous epithelium, is called the ________
A) lumen
B) muscularis externa
C) serosa (mesentery)
D) submucosa
E) mucosa (mucous membrane)
C
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Mary noticed a large, brown spot on her skin. She has been playing tennis in the sun for several years without sun protection
She reported the discovery to a friend, who told her to apply the ABCD rule to determine whether or not she had malignant melanoma. Her friend told her that if her answer was "no" to the questions that were asked by the ABCD rule, she had nothing to worry about. What is the ABCD rule and should she ignore the spot if her answers are negative? What will be an ideal response
In a human cell, DNA may be found within
a. the nucleus b. mitochondria c. the cytoplasm d. all of the above e. none of the above
________ cells produce estrogen in the ovaries.
What will be an ideal response?
The study of prenatal development is called ________.
Fill in the blank(s) with the appropriate word(s).