2 organisms change in response to each other

The best example of an analogous structure would be __________.

comparing owl wings and dragonfly wings

Refer to the illustration. An analysis of DNA from these organisms would indicate that

their nucleotide sequences have many similarities

Divergent Evolution is

multiple species evolving from a common ancestor

a population of bacteria is treated with hand sanitizer, what is a possible outcome?

some may be resistant and survive

Intermediate fossil forms are important evidence of evolution because they show __________.

how organisms changed over time

Which of the following is NOT an example of evolution?

a caterpillar going through a change into a butterfly

Convergent Evolution is

unrelated species have similar traits b/c they live in similar environments

formation of a new species from a pre-existing species

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Biology 19/20 Unit 6 Review - Evolution

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evolution

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Questions 20

Answers

1
Coevolution is
2 organisms change in response to each other
unrelated species have similar traits b/c they live in similar environments
elimination of a species
formation of a new species from a pre-existing species
2
Individuals that are well adapted to their environment will survive and produce __________.
more offspring
better traits
fewer mutations
stronger genes
3
During the process of natural selection, what determines which organisms survive and reproduce?
number of adaptations
population size
evolutionary fitness
variety of adaptations
4
The theory of evolution states that _________.
fossils evidence disproves natural selection
divergence leads to extinction
DNA differences disprove natural selection
species change over time
5
2 body structures, found in different species, have different bone structures but serve a similar purpose
natural selection
vestigial structures
homologous structures
analogous structures
6
Eyes (in a blind salamander) are an example of a(n) __________ organ.
analogous
vestigial
extinct
homologous
7
Which of the following would an animal breeder use to increase the number of cows that give the most milk?
acquired characteristics
overproduction
genetic isolation
artificial selection
8
The best example of an analogous structure would be __________.
comparing mosquito wings and bumblebee wings
comparing a bat wing and a human arm
comparing a human arm and a whale arm
comparing owl wings and dragonfly wings
9
What is necessary in order for advantageous adaptations to spread throughout a population over time?
both of these
reproduction
sexual selection
none of these
10
Refer to the illustration. An analysis of DNA from these organisms would indicate that
their nucleotide sequences have many similarities
they have identical DNA
they all can fly
they all have the same number of chromosomes
11
Divergent Evolution is
multiple species evolving from a common ancestor
elimination of a species
2 organisms change in response to each other
unrelated species have similar traits b/c they live in similar environments
12
a population of bacteria is treated with hand sanitizer, what is a possible outcome?
the population will grow quickly
all of the bacteria are already resistant
they will get better at obtaining a food source
some may be resistant and survive
13
The fossils indicate that horse evolution probably has taken place __________.
on only one place on Earth
rapidly from one generation to the next
gradually over time
without any change
14
Intermediate fossil forms are important evidence of evolution because they show __________.
how the embryos of organisms develop
molecular homologies
how organisms changed over time
how animals behaved in their environments
15
Which of the following is a vestigial structure?
dinosaur teeth
flower color
beak of a finch
human tailbone
16
In addition to observing living organisms, Darwin studied the preserved remains of ancient organisms called __________.
adaptations
fossils
vestigial structures
homologies
17
Which of the following is NOT an example of evolution?
human brains becoming larger over time
species of tortoises in Galapagos islands descending from a common ancestor
a caterpillar going through a change into a butterfly
horses becoming taller and faster over millions of years
18
Convergent Evolution is
multiple species evolving from a common ancestor
unrelated species have similar traits b/c they live in similar environments
elimination of a species
2 organisms change in response to each other
19
Speciation is
unrelated species have similar traits b/c they live in similar environments
formation of a new species from a pre-existing species
2 organisms change in response to each other
elimination of a species
20
Extinction is
elimination of a species
multiple species evolving from a common ancestor
2 organisms change in response to each other
formation of a new species from a pre-existing species

Biology 19/20 Unit 6 Review - Evolution Flashcards | StudBud