What is the part of a sarcomere that contains only thin filaments?

A) Z line
B) H band
C) I band
D) A band


Answer: I band

Biology & Microbiology

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Calcium is necessary to initiate muscle contraction. Which of the following molecules binds calcium?

A. myosin B. actin C. troponin D. tropomyosin

Biology & Microbiology

Bats use high ultrasonic sounds to perceive their environment much like humans use radar. In animals,

this process of detecting objects is called

a. sound reflection navigation. b. extra sensory perception. c. echolocation. d. ultralocation. e. auditory navigation.

Biology & Microbiology

Systems biology is also called integrative biology

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

The period of human development that spans from the second week after fertilization until the end of the second month is called ___________

Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology