Which is an example of an adaption?

Polar bear fur is better camouflage on ice flows than brown bear fur

Which is the definition of evolution?

the change of species over time

According to the theory of natural selection, why are some individuals more likely to survive and reproduce than others?

They are better adapted to exist in their others

According natural selection, why are some individuals more likely to survive and reproduce?

because the individuals have the best adaptations to survive

what is an example of an adaptation?

webbed feet, different camouflage

Which of the following is a correct statement about the relationship between natural selection and evolution?

Natural selection is one mechanism of evolution.

how do fossils demonstrate evidence of evolution?

shows similarity between ancient species and modern species

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Natural Selection and Evolution Review

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Natural selection and evolution

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Questions 20

Answers

1
what factor increase chances of survival for a species?
disjunction
variation
polyploidy
migration
2
Which is an example of an adaption?
Both a human and a gorilla have opposable thumbs for grasping objects
All African cheetahs have a similar DNA and genetic make up
Sparrow and finch wings allow for quick burstof speed during flight
Polar bear fur is better camouflage on ice flows than brown bear fur
3
Which is the definition of evolution?
parents passing traits to offspring
the change of species over time
genetic difference in a species
the appearance of new life forms
4
Reduction in number of alleles, resulting in a population that is genetically similar
genetic equilibrium
founder effect
bottleneck
5
what type of selection favors average individuals?
directional selection
disruptive selection
stabilizing selection
bias
6
According to the theory of natural selection, why are some individuals more likely to survive and reproduce than others?
They are better adapted to exist in their others
They pass on new characteristics they acquired during their lifetime
They tend to produce fewer offspring than do others
They do not pass on new characteristics acquired during their lifetime
7
Body parts that are similar in origin and structure
Vestitigial structure
Homologous structures
Camouflage
Variation
8
a population rats is lowered to near extinct levels after a new poison is created.what is this
an example of speciation
An example of bottleneck
an example of genetic equilibrium
an example of natural selection
9
According natural selection, why are some individuals more likely to survive and reproduce?
because individuals learned the best survival skills
because the individuals have the less offspring
because the individuals have the best adaptations to survive
because the individuals have the strongest offspring
10
Constant allele frequencies in a population
bottleneck
genetic equilibrium
founder effect
11
what is an example of an adaptation?
webbed feet
tendency to hide under rocks for safety
how fast a cheetah can run
different camouflage
12
A trait that makes an individual different from other members of its species
Natural selection
Camouflage
Variation
Vestigial structures
13
A small, separated population with a unique genetic make up
founder effect
genetic equilibrium
bottleneck
14
Body parts that are reduced in size with no apparent function
Homologous structures
Variation
Vestigial structures
Camouflage
15
several individuals are isolated on an island. this determines the genetic makeup in the future
genetic drift
sexual selection
the founder effect
a bottle neck
16
When an organism blends into its environment
Camouflage
Mimicry
Embryology
Natural selection
17
Which of the following is a correct statement about the relationship between natural selection and evolution?
Natural selection results from evolution.
Natural selection and evolution are the same thing.
Natural selection is one mechanism of evolution.
Natural selection includes evolution as a part of it.
18
how do fossils demonstrate evidence of evolution?
shows similarity between ancient species and modern species
provide evidence that species remain unchanged over time
gives evidence that some species are now extinct
they are a primary source for natural selection
19
Survival of the fittest
Variation
Embryology
Camouflage
Natural selection
20
Cheetahs had a big drop in population. Then rebounds & creates a population of very similar genetic animals, is called
speciation
genetic equilibrium
founder effect
bottleneck

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