Compare and contrast the structure of SER and RER
What will be an ideal response?
Both SER and RER have cisternae. SER lacks ribosomes, and its cisternae are tubular. RER has ribosomes attached to cisternae in the shape of flattened sheets.
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The spermatids:
a. are direct daughter cells of the spermatogonium b. are direct daughter cells of the secondary spermatocytes c. contain 23 chromosomes d. both B and C above
________ is a period in adolescence where the reproductive organs become fully functional and the external sex characteristics become more prominent.
Fill in the blank(s) with the appropriate word(s).
During bone growth, which significant event occurs at the surface indicated by the letter C?
conversion of spongy bone to compact bone bone resorption expansion of the articular cartilage appositional growth
Mucosa-associated lymphatic tissues (MALT) include the:
A) tonsils. B) liver. C) kidneys. D) spleen.