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Evolution Review
Evolution Review
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Year 10 Evolution Review
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Which is not one of the key premises to Darwin's Theory of Natural Selection?
Competition
Variation
Gene flow
Overproduction
2
How did the early evolutionist Lamarck explain giraffes' long necks?
The first giraffes were created with long necks.
In its lifetime its neck became longer to reach high leaves.
Giraffes born with the longest necks were likely to survive.
3
Oceanic islands can be home to species found nowhere else on Earth. Why?
Island are more diverse than non-island habitats.
Islands are often isolated, minimising gene flow.
Islands are stable and adaptations are minimised.
Islands are free of disease.
4
Which vertebrate, out of the mouse, chicken or frog is most closely related to a human?
Mouse
Rhesus monkey
Frog
Chicken
5
Phylogenetic trees are useful to scientists who are studying biogeography because:
They help scientists identify evolutionary relationships
They reveal which species are more evolved.
They can identify locations of fossils.
6
Which definition best describes the word
'adaptation'
?
The way in which animals obtain food
A change in the organism's environment
A trait that helps an organism survive and reproduce
A temperature change that can cause a mass extinction
7
Which of the following is an example of a selection pressure?
Mutation
Competition for food
Variation
8
The Galápagos finches are an example of an array of species that:
Evolved from a single island species.
Migrated to an island as a group.
Interbred to form one new island species.
Each independently migrated to an island.
9
During speciation when do two groups of organisms become separate species?
When they cannot communicate and therefore interbreed.
When they cannot interbreed to produce fertile offspring.
When they look different
When they become isolated from each other.
10
Fossils are evidence used to support the theory of Evolution.
Relative dating
uses...
Index fossils
Half-lives
Radioactive isotopes
Dinosaurs
11
Match each skull with its species name.
A- H.sapiens B- H.neanderthals C- P.troglodytes (chimpanzee)
A-P.troglodytes (chimpanzee)B- H.sapiens C-H.neanderthals
A- H.neanderthals B-H.sapiens C- P.troglodytes (chimpanzee)
A- H.sapiens B- P.troglodytes (chimpanzee) C- H.neanderthals
12
The number of DNA differences between organisms gives an indication of their relatedness.
False
True
13
What is artificial selection?
The breeding of desired traits a species
The shifting of the mean phenotype of a trait to one extreme
The selection of a trait due to environmental pressures
Introduction of genes into a genome
14
It is estimated that ____ species are lost per year due to tropical forest destruction.
17
27 000
2 700
270
15
What is
not
a key characteristic of all primates?
Well developed binocular vision
Prehensile tail
Opposable thumbs
Relatively large brain
16
Structures our ancestors had but are no longer necessary or useful.
Analogous
Heterologous
Homologous
Vestigial
17
What types of rocks are fossils found in?
Igneous
Dirty
Sedimentary
Metamorphic
18
Does the complexity of fossilised organisms differ between older and younger rocks?
Complexity between the rocks remains very much the same
Older rocks contain more complex organisms
Younger rocks contain more complex organism
19
Humans, cats, whales and bats all have similar arm bones. What is the reason for this?
They all live in similar environments.
All organisms resemble humans.
The function of these bones is the same in all animals.
They have a common ancestor.
20
What is the correct order for the events of speciation?
mutation, selection, isolation
isolation, mutation, selection
mutation, isolation, selection
