The principal radiation interaction within the human body is with _____.
a) DNA
b) macromolecules
c) water
d) RNA
Ans: c) water
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In island biogeography, larger islands support ______ species than smaller islands.
A. more B. fewer C. larger D. stranger E. smaller
A scanning confocal microscope
A. produces specimen images on electron micrographs. B. uses dyes that emit visible light when excited by ultraviolet radiation. C. uses ultraviolet light to form a specimen image. D. scans narrow planes and can build a three-dimensional image of the specimen.
A general trend in the structure of many biomolecules is
A) that the order and bonding of monomers form the basis for the secondary and tertiary structure of the polymer. B) that they are all soluble in water independent of the size of the polymer. C) that each class of biomolecule forms one type of secondary structure independent of the order of the monomers in the polymer. D) that each class of biomolecule can form either fibrous or globular conformations depending on the chemical conditions inside the cell. E) that four different monomers form the basis for the functional and structural properties of each polymer.
All the organisms of various species living within a given area constitute a(n)
What will be an ideal response?