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Natural Selection
Natural Selection
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Freshman Biology
Flashcards
14 cards
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Questions
14
Answers
1
What would an animal breeder use to increase the number of cows that give the most milk?
genetic isolation
overproduction
artificial selection
random mating
2
DNA provides evidence of evolution because
DNA replicates
DNA codes for proteins
all organisms have nearly identical DNA
no two organisms have the exact same DNA
3
The dog breeds we have today were developed through:
accumulation of acquired traits
natural selection
artificial selection
sexual selection
4
A bird's wings are homologous to
alligator's claws
a fish's fin
a dog's front leg
mosquito's wings
5
Which of the following is NOT a component of the Theory of Evolution by Natural Selection?
competition for food and space
inheritance of acquired characteristics
survival and reproduction
variation among species
6
Which scientist formulated the theory of evolution by natural selection
Malthus
Hutton
LaMarck
Darwin
7
A structure that seems to serve no purpose in an organism is called:
analogous
homologous
vestigial
dichotomous
8
An inherited characteristic that increases an organism's ability to survive and reproduce is a
adaptation
vestigial structure
species
analogous structure
9
Structures that have different mature forms but develop from the same embryonic tissue are
fossils
homologous
analogous
vestigial
10
The ultimate source of genetic variation is
natural selection
mutation
artificial selection
random mating
11
Which of the following is an important concept in Darwin's theory of evolution?
humans evolved from monkeys
change over time
tendency toward perfection
change in gene frequency
12
The image illustrates what evolutionary concept?
vestigial structures
homologous structures
variation among species
embryological similarities
13
The strongest evidence for change over a long period of time comes from:
DNA
fossils
direct observation of structures
embryology
14
How well an organism survives and reproduces in its environment can be described as its
common descent
homologies
analogies
fitness
