Type II survivorship curves:
a. are characteristic of humans and elephants
b. typify a population in which all ages have an equal chance of surviving
c. indicate a high mortality rate in the very young
d. show that very few young are produced, that each is given parental support, and that most individuals live a relatively long life and die of old age
e. are typical of mammals
b
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Of the following, which is the most current description of a gene?
A) a unit of heredity that causes formation of a phenotypic characteristic B) a DNA subunit that codes for a single complete protein C) a DNA sequence that is expressed to form a functional product: either RNA or polypeptide D) a DNAâ€"RNA sequence combination that results in an enzymatic product E) a discrete unit of hereditary information that consists of a sequence of amino acids
Which of the following is an example of potential energy?
a. riding a bicycle b. swinging on a rope swing c. doing jumping jacks d. sitting on a couch
All of the following are associated with nucleic acid structure EXCEPT
A) ribose. B) hydrogen bonds. C) uracil. D) ionic bonds. E) phosphate.
What pH conditions favor the growth of most bacteria?
A. pH 2 B. pH 5 C. pH 7 D. pH 9 E. Bacteria can grow at all ranges of pH.