What factors can increase the rate of diffusion?
A. Steepness of the concentration gradient
B. Increase in temperature
C. Surface area of the membrane
D. All of these
Ans: D. All of these
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Folds of mucous membrane called ________ vibrate to provide speech.
Fill in the blank with the correct word.
Follicles in the ovary that are never ovulated
A. undergo atresia. B. undergo and complete meiosis in the ovary. C. proliferate. D. form secondary follicles. E. become the corpus albicans.
The notable hardness of bone is attributed to ________.
the presence of inorganic hydroxyapatites the presence of glycoproteins the presence of collagen fibers the presence of cartilage the presence of proteoglycans
Blood belongs to which of the following types of connective tissue?
A) dense connective tissue proper B) loose connective tissue proper C) fluid connective tissue D) supportive connective tissue E) lymph connective tissue