The cytoskeletal structure(s) that are composed of actin and regulate cell shape, cell movement, and muscle contraction include
A. microtubules.
B. microfilaments and microtubules.
C. intermediate filaments.
D. microtubules and intermediate filaments.
E. microfilaments.
Answer: E
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Which of the following defines the benthic realm?
a. The area of the ocean that is considered open water. b. The area of the ocean into which no light can penetrate. c. The area that extends along the ocean bottom along the shoreline to the deepest parts of the ocean floor. d. The area of the ocean between high and low tide that is the oceanic region closest to land.
Glucose transported into human cells can be transformed into all of the following except
A) sucrose for energy production. B) carbon dioxide and water by aerobic respiration. C) lactate in the absence of oxygen. D) glycogen for energy storage. E) acetyl CoA to make body fat.
Which of the following is the concept associated with an animal shivering in a cold environment to stay warm?
A) homeostasis B) conformer C) counter current heat exchange D) torpor
"Breaking the genetic code" has been referred to as one of the most significant scientific achievements in modern times. Describe (in outline or brief statement form) the procedures used to break the code
What will be an ideal response?