If human gametes were diploid
A. the products of fertilization would have the same number of chromosomes as their parents.
B. the products of fertilization would have fewer chromosomes than their parents.
C. fertilization could not occur.
D. the products of fertilization would have more chromosomes than their parents.
E. the embryo would be diploid.
D. the products of fertilization would have more chromosomes than their parents.
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Which of the following pairs of microorganisms are NOT likely to form close associations or consortia?
A) purple sulfur bacteria and dissimilative sulfur-reducers B) dissimilative sulfur-reducers and dissimilative sulfur-oxidizers C) nitrogen-fixing cyanobacteria and fungi D) nitrogen-fixing cyanobacteria and dissimilative sulfate-reducers
The apple maggot's natural host plant is the hawthorne; however, over the past 150 years, new populations were found
that feed on apples and cherries. This is an example of ____ speciation via the development of ____.
a. sympatric; allopolyploidy b. allopatric; host races c. sympatric; host races d. allopatric; autopolyploidy e. sympatric; autopolyploidy
Which choice describes a biological population?
A) A bird, a lizard, and an insect in a cage at a zoo B) An all-male army C) People living in an apartment building D) Pebbles on a beach
All of the following are adaptations of tuna for fast swimming except:
a. warmer than ambient body temperature. b. retractable pectoral fins. c. rounded tail. d. operculum that lies tightly against the body. e. sickle-shaped tail.