Epithelia ________.
A) provide sensation
B) control permeability
C) provide physical protection
D) produce specialized secretions
E) All of the answers are correct.
Ans: E) All of the answers are correct.
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This cellular organelle is comprised of a pair of centrioles and the surrounding pericentriolar material
a) cytoskeleton b) cilia c) centrosome d) flagella e) peroxisomes
Which of the following is true about oogonia in human females?
A) They undergo mitosis because they are sex cells. B) They produce cells with 23 pairs of chromosomes. C) They undergo meiosis because they are sex cells. D) They are produced after a female child is born.
The tough, outer layer of connective tissue that covers most of the eyeball is the
a. sclera. b. eyelid. c. eye socket. d. choroid. e. cornea.
Which type of tissue conducts electrochemical impulses via cells called neurons?
A) epithelial tissue B) muscle tissue C) nervous tissue D) connective tissue E) dense tissue