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2025 Y10 AT2 Revision - Natural Selection Flashcards | StudBud
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2025 Y10 AT2 Revision - Natural Selection
He ignored climate effects
Why was Lamarck’s theory incorrect?
2025 Y10 AT2 Revision - Natural Selection
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1
Why was Lamarck’s theory incorrect?
He didn’t study fossils
He worked with pea plants only
He ignored the effects of climate
Acquired traits are not inherited
2
He ignored climate effects
Inheritance of acquired characteristics
Natural selection causes gradual changes in species
All organisms remain unchanged
Only humans evolve
3
What role does isolation play in speciation?
Leads to shared traits
Prevents fertilisation
Stops mutation
Allows populations to evolve separately
4
Which of the following is an example of comparative anatomy?
Comparing climates of islands in the same geographic location
Observing reproduction rates in land animals
Studying similar bone structures in different species
Measuring the height of animals over 1.5m long
5
What is meant by the term “selection pressure”?
A physical force that causes extinction
A fossil formation process
An environmental factor that affects survival
A human choosing organisms to breed
6
What does “S” in VESP stand for?
Spread of the fastest
Speed of the fittest
Survival of the fittest
Strength of the flightless
7
Which of the following is a modern example of natural selection?
Photosynthesis in leaves
Migration of birds
Growth of plants in spring
Evolution of antibiotic-resistant bacteria
8
What is an adaptation?
A disease an organism develops
A random change in the environment
A feature that helps an organism survive and reproduce
A learned behaviour
9
What is biogeography?
A type of fossil that is very rare
The study of plant photosynthesis
The study of where organisms live and the similarities between them
The process of editing genes for electrophoresis
10
What did Lamarck believe about evolution?
Natural selection drives evolution
Traits acquired during life could be passed on
All species were created at once
Organisms never change, regardless of environmental change
11
What causes genetic variation in a population?
Cloning
Fossilisation
Identical reproduction
Mutation and sexual reproduction
12
Evolution of species
Both moth types died off
Light-colored moths became more common
Moths stopped reproducing
Dark-colored moths increased due to better camouflage
13
Which type of reproduction increases genetic diversity?
Asexual reproduction
Sexual reproduction
Binary fission
Mitosis
14
What is the result of natural selection over many generations?
Reduced diverisyy of organisms
Evolution of species
Increased genetic similarity among organisms
Increased extinction
15
What is speciation?
Migration of organisms
The formation of a new species
A mutation that causes extinction
A change in diet
16
What happens when a mutation gives an organism a survival advantage?
The trait disappears
The trait is more likely to be passed on
The mutation is removed
The organism becomes extinct
17
Why did finches on different Galapagos Islands have different beak shapes?
They had different feathers
They flew differently
They were different species at birth
They ate different types of food
18
What is reproductive isolation?
When two populations can no longer interbreed
When organisms share the same habitat
When reproduction is artificial
When organisms reproduce quickly
19
In natural selection, what does “E” in VESP stand for?
Extinction
Evolution
Environmental pressures
Energy
20
How do mutations contribute to evolution?
They create new alleles that may be advantageous
They eliminate all variation
They prevent reproduction
They always harm the organism
21
How does DNA support the theory of evolution?
Shows that organisms have not changed over time
Proves the earth was once flat
Shows that all organisms are unrelated
Reveals genetic similarities between different species
22
What is natural selection?
Survival and reproduction of individuals with advantageous traits
A learned behavior that is passed on
Traits passed only from one parent
A random change in behavior
23
What do fossils help scientists understand?
Local weather patterns
How to classify minerals
Global climate patterns
Evolution and how species changed over time
24
What does the “V” in VESP stand for?
Visibility
Variation
Volume
Velocity
25
Why did Darwin delay publishing his theory?
He had very little evidence to support his theory
He didn’t understand the effects of climate on biology
He feared rejection from the church and scientific community
Wallace was concerned that he would not get credit for his work
