The ends of a sarcomere are defined by ____

a. A lines
b. M lines
c. Z lines
d. myofibrils
e. thick filaments


ANSWER: c

Biology & Microbiology

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Side A is ____ to side B

a. hypertonic b. hypotonic c. isotonic d. either isotonic or hypertonic e. either isotonic or hypotonic

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What name is given to the process that restores the diploid number of chromosomes?

A) fertilization B) asexual reproduction C) meiosis D) mitosis E) the cell cycle

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The endoplasmic reticulum 

A. functions in internal transport of macromolecules. B. carries on cellular respiration. C. is the site of photosynthesis. D. is dispersed nuclear material of DNA and protein.

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A passageway shared by the digestive and respiratory systems is the ________

A) sinuses B) pharynx C) larynx D) esophagus

Biology & Microbiology