When would an atom be least likely to form chemical bonds with other atoms?
A) The number of protons equals the number of electrons.
B) The number of protons equals the number of neutrons.
C) There is only one electron in the valence shell.
D) The valence shell is full of electrons.
D
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Lipids are a class of cellular macromolecules that are ____________________ in water
Fill in the blank(s) with correct word
Which factors govern the rate of primary productivity in freshwater and marine ecosystems?
a. availability of water b. availability of sunlight and nutrients only c. depth of the water only d. depth of the water and availability of sunlight and nutrients e. availability of oxygen
A red, round, true-breeding tomato is bred with a yellow, oval, true-breeding tomato, and the F1s are testcrossed to a homozygous-recessive tester. This results in the offspring below
Calculate the chi-squared value to test the likelihood of linkage. yellow oval 11 red round 14 yellow round 7 red oval 8
The formal definition of ‘fitness' in evolutionary biology:
a. pertains to reproductive success. b. implies something is well matched or fit. c. Both of the above. d. Neither of the above.