Question 1

What is the likely outcome when a mutation results in a trait that improves an organism's survival and reproduction?

  A  

the trait will disappear from the population

  B  

the frequency of the advantageous allele will increase

  C  

the population will become more susceptible to predators

  D  

the mutation will remain neutral with no effect on the population

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Question 2

What type of adaptation is exhibited by animals with body coverings such as scales or feathers?

  A  

physiological

  B  

behavioural

  C  

anatomical

  D  

reproductive

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Question 3

How does the thick wax layer on plant leaves contribute to their survival?

  A  

by attracting pollinators

  B  

by preventing water loss

  C  

by capturing prey

  D  

by aiding in photosynthesis

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Question 4

Which of the following is an example of a physiological adaptation?

  A  

migration

  B  

courtship behaviour

  C  

antibiotic production by bacteria

  D  

the shape of teeth in herbivores

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Question 5

Which factor is not a selection pressure in natural selection?

  A  

predation

  B  

competition for resources

  C  

the number of offspring produced

  D  

climate conditions

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Question 6

Which behaviours would be classified as seasonal behaviours?

  A  

camouflage and mimicry

  B  

migration and hibernation

  C  

innate and learned behaviours

  D  

courtship and survival tactics

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Question 7

What does stabilising selection typically do to a population's characteristics?

  A  

it favours phenotypic extremes

  B  

it increases genetic diversity

  C  

it leads to new species formation

  D  

it preserves the average traits

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Question 8

What are characteristics that are influenced by more than one gene are called?

  A  

mutations

  B  

polygenes

  C  

alleles

  D  

genotypes

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Question 9

Which type of selection favours individuals that vary in one direction from the mean of the characteristic?

  A  

directional selection

  B  

stabilising selection

  C  

disruptive selection

  D  

artificial selection

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Question 10

What type of selection could lead to antibiotic resistance in bacteria?

  A  

directional selection

  B  

stabilising selection

  C  

sexual selection

  D  

disruptive selection

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Question 11

What is an example of a characteristic that may be selected for by directional selection in a changing environment?

  A  

average height

  B  

intermediate skin pigmentation

  C  

symmetrical facial features

  D  

antibiotic resistance in bacteria

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Question 12

What change occurs in a population's normal distribution curve during directional selection?

  A  

it shifts in the direction of the advantageous trait

  B  

it becomes narrower with reduced variance

  C  

it remains the same, as only allele frequencies change

  D  

it splits into two distinct peaks indicating disruptive selection

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