The second law of thermodynamics holds that
a. the energy of the universe is a constant.
b. energy can be neither created nor
destroyed.
c. energy disperses spontaneously.
d. energy transformations create a more
orderly universe.
e. energy and matter are the same thing
C
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Darwin recognized that ____ had generated the amazing diversity of organisms on Earth
a. descent with modification b. genetic mutations c. genetic variation d. differences in allele frequencies e. differences in genotype frequencies
Diagrams depicting family relationships and phenotypes for a genetic disorder are Select one:
a. linkage maps. b. Punnett squares. c. pedigree charts. d. bell-shaped curves. e. karyotypes.
A stamen consists of _____.
a) ovary and sepal b) stigma and style c) stigma and anther d) anther and filament e) stigma and filament
The concept that two species cannot occupy the same ecological niche at the same time is called
A) coevolution. B) succession. C) mutualism. D) the competitive exclusion principle. E) predation.