Within insects, the main evolutionary dividing line is between those that
A. fly and those that do not fly.
B. have lost wings that were present in their
common ancestor and those that still fly.
C. shed their wings as they molt and those
that do not.
D. undergo metamorphosis and those that
don't.
E. have eggshells and those that don't.
D
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The process of binary fission leads to the production of how many cells?
a. 1 b. 2 c. 3 d.4
Most polymorphisms do not result in a phenotypic difference because they are typically
A) nonsense mutations. B) either missense or neutral mutations. C) either silent mutations or are in non-coding regions. D) either missense mutations or are in promoter regions.
During contraction
a. cross bridges of muscle filaments are broken and reformed. b. ATP is released as a biproduct from cross-bridges. c. muscle cells use phosphate as their energy source. d. if there is an abundant supply of oxygen, glycogen depletion by glycolysis will lead to fatigue. e. calcium is linked to the myosin head.
All of the following individuals contributed to the cell theory except:
A) Rudolph Virchow B) Mattias Schleiden C) Linus Pauling. D) Theodor Schwann E) Robert Hooke