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2017 Evolution And Natural Selection Review 2
Test Description: Evolution Review 2
Instructions: Answer all questions to get your test result.
1) Which best describes the purpose of mixing gene pools?
A
increases the number of organisms
B
reduces genetic variation
C
reduces the number of organisms
D
promotes genetic variation
2) Which is true about fossils?
A
Fossils provide the evidence for the Law of Gravity.
B
Fossils provide the evidence for the Theory of Evolution.
C
Fossils provide the evidence for the Laws of Motion.
D
Fossils provide evidence for the first law of thermodynamics
3) How are fossils compared to one another for biological classification?
A
by similarities and differences in their body structures
B
by their size
C
by the geographic locations where they are found
D
by their estimated life spans
4) Which best demonstrates analogous structures in animals?
A
cat fur and dog fur
B
whale fins and human arms
C
bird wings and insect wings
D
gills in fish and lungs in mammals
5) A group of organisms belonging to a single species that live in the same area.
A
biosphere
B
ecosystem
C
community
D
population
6) The more closely related two species are,
A
the closer they are to becoming extinct
B
the least likely they are to be found in the same fossil layer
C
the less similar their DNA sequence.
D
the more similar their DNA sequence.
7) A population of deer live in a forest. Which factor below would NOT be considered a limiting factor?
A
The size of the forest.
B
The amount of offspring each deer have.
C
The amount of food available in the forest.
D
The amount of water available in the forest.
8) What do rabbits, plants, mushrooms and humans all have in common?
A
They are all types of biotic factors.
B
They can all move to find water.
C
They are all types of parasites.
D
They are all abiotic factors.
9) A tick attaches itself to a dog. The tick feeds off the dog while the dog is harmed. This represents which type of symbiosis?
A
commensalism
B
mutualism
C
realism
D
parasitism
10) Which of these characteristics best helps scientists classify organisms?
A
gender
B
color
C
size
D
structure
11) A natural process that changes the DNA sequence of an organism.
A
natural selection
B
mutualism
C
adaptation
D
mutation
12) How does genetic variation affect an organism’s ability to adapt to its environment?
A
decreases it
B
increases it
C
has no known effect in most organisms
D
allows for more movement between populations
13) A genetic change that helps an organism, such as a plant or animal, survive in its environment.
A
mutation
B
biodiversity
C
competition
D
adaptation
14) Two organisms have homologous structures. Which can most likely be concluded about the two organisms?
A
They are unrelated.
B
They shared a common ancestor
C
They evolved in a similar environment.
D
They are the same organism
15) A change in the heritable traits (phenotype) of biological populations over successive generations.
A
a mutation
B
an adaptation
C
natural selection
D
evolution
16) A bird cleans the teeth of an alligator. The bird gets a meal and the alligator gets its teeth cleaned. This is an example of which type of symbiosis?
A
parasitism
B
commensalism
C
mutualism
D
realism
17) Which concept below does not support the idea of a common ancestor?
A
DNA sequencing
B
Vestigial structures.
C
Anagolous structures.
D
Homologous structures.
18) Organisms who are evolutionarily closer are most likely found at which taxonomic level?
A
kingdom
B
species
C
order
D
family
19) Which below is not one of Darwin's four principles of natural selection?
A
successful reproduction
B
over production
C
continental drift
D
genetic variation
20) What do wind, temperature, soil and water all have in common?
A
They are all biotic factors.
B
They are all abiotic factors.
C
They can all cause genetic variation.
D
They are all biometric factors.
*select an answer for all questions
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