In cells that are not dividing, chromosomes uncoil to form a tangle of fine fibers known as
A) nucleosomes.
B) centromeres.
C) chromatids.
D) chromatin.
E) nucleoli.
Answer: D
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The internal environment of the body refers to
A. the intracellular fluid. B. the interstitial fluid and the intracellular fluid combined. C. the plasma. D. the interstitial fluid. E. the plasma, the interstitial fluid, and the intracellular fluid combined.
Hypersecretion of human growth hormone during childhood results in
a) giantism. b) acromegaly. c) dwarfism. d) rickets. e) no apparent effect.
The group of five vertebrae that are normally fused and have a broad surface for muscle attachment are the ________ vertebrae.
Fill in the blank(s) with the appropriate word(s).
Proprioception plays an important role in the ability to ________
A) climb a rope B) maintain balance while under the influence of alcohol or drugs C) maintain hand-eye coordination D) navigate through a dark home