Directly related questions
-
22N.1A.SL.TZ0.20:
By the end of the 19th century in England, the dark form of the moth Biston betularia formed up to 98% of the total population in industrial areas. From 1970, the percentage of dark forms decreased significantly. What is an explanation for the decrease?
A. An increase in environmental pollution killed the dark forms more than the light forms.
B. Reduction of pollution resulted in greater camouflage for light forms of the moth.
C. Dark forms could no longer find mates.
D. Light forms had superior feeding mechanisms.
-
22N.1A.SL.TZ0.20:
By the end of the 19th century in England, the dark form of the moth Biston betularia formed up to 98% of the total population in industrial areas. From 1970, the percentage of dark forms decreased significantly. What is an explanation for the decrease?
A. An increase in environmental pollution killed the dark forms more than the light forms.
B. Reduction of pollution resulted in greater camouflage for light forms of the moth.
C. Dark forms could no longer find mates.
D. Light forms had superior feeding mechanisms.
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- SPM.2.SL.TZ0.6b: Explain how sexual reproduction gives rise to genetic variation.
- SPM.2.SL.TZ0.6b: Explain how sexual reproduction gives rise to genetic variation.
- SPM.2.SL.TZ0.6b: Explain how sexual reproduction gives rise to genetic variation.
- SPM.2.SL.TZ0.b: Explain how sexual reproduction gives rise to genetic variation.
Sub sections and their related questions
D4.1.1. Natural selection as the mechanism driving evolutionary change
- 19M.2.SL.TZ2.1j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.1A.SL.TZ1.21: Which is an example of natural selection? A. A giraffe stretching its neck to reach higher...
-
22M.2.SL.TZ2.7b:
Explain how natural selection can cause traits such as drought resistance to develop in wild plants.
- 19M.2.SL.TZ2.1j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.1j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.1j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.1j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.1j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.2.SL.TZ2.j: Discuss whether natural selection would favour the transgenic EBF-producing thale cress plants if...
- 19M.1A.SL.TZ1.21: Which is an example of natural selection? A. A giraffe stretching its neck to reach higher...
-
22M.2.SL.TZ2.7b:
Explain how natural selection can cause traits such as drought resistance to develop in wild plants.
-
22M.2.SL.TZ2.b:
Explain how natural selection can cause traits such as drought resistance to develop in wild plants.
D4.1.2. Roles of mutation and sexual reproduction in generating the variation on which natural selection acts
- 21M.1A.SL.TZ1.22: Which process results in decreased variation? A. Meiosis B. Mutation C. Sexual...
- 20N.2.SL.TZ0.4b.ii: Explain how evolution by natural selection depends on mutations.
- 19M.1A.SL.TZ2.20: What is required for natural selection to occur? I. Acquired characteristics II. Advantageous...
-
22M.2.SL.TZ2.7b:
Explain how natural selection can cause traits such as drought resistance to develop in wild plants.
- 21N.2.SL.TZ0.6c: Distinguish between continuous and discrete variation, using examples.
- SPM.2.SL.TZ0.6b: Explain how sexual reproduction gives rise to genetic variation.
- SPM.2.SL.TZ0.6b: Explain how sexual reproduction gives rise to genetic variation.
- 21M.1A.SL.TZ1.22: Which process results in decreased variation? A. Meiosis B. Mutation C. Sexual...
- 20N.2.SL.TZ0.4b.ii: Explain how evolution by natural selection depends on mutations.
- 20N.2.SL.TZ0.b.ii: Explain how evolution by natural selection depends on mutations.
- 19M.1A.SL.TZ2.20: What is required for natural selection to occur? I. Acquired characteristics II. Advantageous...
-
22M.2.SL.TZ2.7b:
Explain how natural selection can cause traits such as drought resistance to develop in wild plants.
-
22M.2.SL.TZ2.b:
Explain how natural selection can cause traits such as drought resistance to develop in wild plants.
- 21N.2.SL.TZ0.6c: Distinguish between continuous and discrete variation, using examples.
- 21N.2.SL.TZ0.c: Distinguish between continuous and discrete variation, using examples.
- SPM.2.SL.TZ0.6b: Explain how sexual reproduction gives rise to genetic variation.
- SPM.2.SL.TZ0.b: Explain how sexual reproduction gives rise to genetic variation.
D4.1.3. Overproduction of offspring and competition for resources as factors that promote natural selection
- 19N.2.SL.TZ0.4a: State the immediate consequence of a species producing more offspring than the environment can...
- 19N.2.SL.TZ0.4b: Explain the consequence of overpopulation on the survival and reproduction of better adapted...
- 19N.2.SL.TZ0.4a: State the immediate consequence of a species producing more offspring than the environment can...
- 19N.2.SL.TZ0.4b: Explain the consequence of overpopulation on the survival and reproduction of better adapted...
- 19N.2.SL.TZ0.a: State the immediate consequence of a species producing more offspring than the environment can...
- 19N.2.SL.TZ0.b: Explain the consequence of overpopulation on the survival and reproduction of better adapted...
D4.1.4. Abiotic factors as selection pressures
- 19M.1B.SL.TZ2.12d: State one abiotic factor that could have determined the distribution of barnacles.
- 19M.1B.SL.TZ2.d: State one abiotic factor that could have determined the distribution of barnacles.
D4.1.5. Differences between individuals in adaptation, survival and reproduction as the basis for natural selection
- 19M.1A.SL.TZ1.21: Which is an example of natural selection? A. A giraffe stretching its neck to reach higher...
-
22N.1A.SL.TZ0.20:
By the end of the 19th century in England, the dark form of the moth Biston betularia formed up to 98% of the total population in industrial areas. From 1970, the percentage of dark forms decreased significantly. What is an explanation for the decrease?
A. An increase in environmental pollution killed the dark forms more than the light forms.
B. Reduction of pollution resulted in greater camouflage for light forms of the moth.
C. Dark forms could no longer find mates.
D. Light forms had superior feeding mechanisms.
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
- 19M.1A.SL.TZ1.21: Which is an example of natural selection? A. A giraffe stretching its neck to reach higher...
-
22N.1A.SL.TZ0.20:
By the end of the 19th century in England, the dark form of the moth Biston betularia formed up to 98% of the total population in industrial areas. From 1970, the percentage of dark forms decreased significantly. What is an explanation for the decrease?
A. An increase in environmental pollution killed the dark forms more than the light forms.
B. Reduction of pollution resulted in greater camouflage for light forms of the moth.
C. Dark forms could no longer find mates.
D. Light forms had superior feeding mechanisms.
- SPM.1A.SL.TZ0.30: What is an outcome of natural selection? A. Evolution B. Mutations C. Reproductive...
D4.1.6. Requirement that traits are heritable for evolutionary change to occur
NoneD4.1.7. Sexual selection as a selection pressure in animal species
-
20N.2.SL.TZ0.8b:
Explain how natural selection can cause mate selection behaviour patterns to develop in a species such as eastern bluebirds.
- 23M.1A.SL.TZ2.8ai: Identify the relationship between migration distance and plumage colouration.
-
23M.1A.SL.TZ2.8aii:
Suggest two reasons, other than mate selection, for variation in plumage colouration in red knots.
-
20N.2.SL.TZ0.b:
Explain how natural selection can cause mate selection behaviour patterns to develop in a species such as eastern bluebirds.
- 23M.1A.SL.TZ2.i: Identify the relationship between migration distance and plumage colouration.
-
23M.1A.SL.TZ2.ii:
Suggest two reasons, other than mate selection, for variation in plumage colouration in red knots.
D4.1.8. Modelling of sexual and natural selection based on experimental control of selection pressures
NoneD4.1.9. Concept of the gene pool
- 22M.1A.SL.TZ1.13: The table shows the estimated total number of genes in several organisms. What can be deduced...
- 22M.1A.SL.TZ1.13: The table shows the estimated total number of genes in several organisms. What can be deduced...
D4.1.10. Allele frequencies of geographically isolated populations
NoneD4.1.11. Changes in allele frequency in the gene pool as a consequence of natural selection between individuals according to differences in their heritable traits
NoneD4.1.12. Differences between directional, disruptive and stabilizing selection
- 19M.1A.HL.TZ1.35: Natural selection can operate in different ways. What is the effect of disruptive selection? A....
-
23M.1A.HL.TZ2.33:
The graphs show how the frequency (f) of a trait within a population changes when subjected to selection pressures. Which graph shows stabilizing selection?
- 19M.1A.HL.TZ1.35: Natural selection can operate in different ways. What is the effect of disruptive selection? A....
-
23M.1A.HL.TZ2.33:
The graphs show how the frequency (f) of a trait within a population changes when subjected to selection pressures. Which graph shows stabilizing selection?
D4.1.13. Hardy–Weinberg equation and calculations of allele or genotype frequencies
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
- SPM.1A.HL.TZ0.39: What assumption is made when using the Hardy-Weinberg equation for calculating changes in allele...
D4.1.14. Hardy–Weinberg conditions that must be maintained for a population to be in genetic equilibrium
NoneD4.1.15. Artificial selection by deliberate choice of traits
-
22M.1A.HL.TZ1.21:
The graph shows the proportion of a bacterial population of Neisseria gonorrhoeae, displaying resistance to the antibiotic tetracycline.
[Source: © All rights reserved. Canadian Antimicrobial Resistance Surveillance System Report, 2016. Public Health Agency of Canada. Adapted and reproduced with permission from the Minister of Health, 2022.]
What can be deduced from this graph?
A. Bacteria with beneficial adaptations survive and pass on their genes.
B. Immunity to tetracycline is triggered by over-use of the antibiotic.
C. Genetic variation in this bacterial population is increasing.
D. Use of tetracycline inhibits the growth of antibiotic-resistant N. gonorrhoeae.
- 22M.1A.HL.TZ2.19: Some strains of the pathogenic bacterium Staphylococcus aureus have developed mechanisms that...
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
23M.2.HL.TZ1.3a:
Explain how natural selection could increase the prevalence of an antibiotic resistance gene in a species of soil bacterium.
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
22M.1A.HL.TZ1.21:
The graph shows the proportion of a bacterial population of Neisseria gonorrhoeae, displaying resistance to the antibiotic tetracycline.
[Source: © All rights reserved. Canadian Antimicrobial Resistance Surveillance System Report, 2016. Public Health Agency of Canada. Adapted and reproduced with permission from the Minister of Health, 2022.]
What can be deduced from this graph?
A. Bacteria with beneficial adaptations survive and pass on their genes.
B. Immunity to tetracycline is triggered by over-use of the antibiotic.
C. Genetic variation in this bacterial population is increasing.
D. Use of tetracycline inhibits the growth of antibiotic-resistant N. gonorrhoeae.
- 22M.1A.HL.TZ2.19: Some strains of the pathogenic bacterium Staphylococcus aureus have developed mechanisms that...
-
22M.1A.HL.TZ1.21:
The graph shows the proportion of a bacterial population of Neisseria gonorrhoeae, displaying resistance to the antibiotic tetracycline.
[Source: © All rights reserved. Canadian Antimicrobial Resistance Surveillance System Report, 2016. Public Health Agency of Canada. Adapted and reproduced with permission from the Minister of Health, 2022.]
What can be deduced from this graph?
A. Bacteria with beneficial adaptations survive and pass on their genes.
B. Immunity to tetracycline is triggered by over-use of the antibiotic.
C. Genetic variation in this bacterial population is increasing.
D. Use of tetracycline inhibits the growth of antibiotic-resistant N. gonorrhoeae.
- 22M.1A.HL.TZ2.19: Some strains of the pathogenic bacterium Staphylococcus aureus have developed mechanisms that...
-
22M.1A.HL.TZ1.21:
The graph shows the proportion of a bacterial population of Neisseria gonorrhoeae, displaying resistance to the antibiotic tetracycline.
[Source: © All rights reserved. Canadian Antimicrobial Resistance Surveillance System Report, 2016. Public Health Agency of Canada. Adapted and reproduced with permission from the Minister of Health, 2022.]
What can be deduced from this graph?
A. Bacteria with beneficial adaptations survive and pass on their genes.
B. Immunity to tetracycline is triggered by over-use of the antibiotic.
C. Genetic variation in this bacterial population is increasing.
D. Use of tetracycline inhibits the growth of antibiotic-resistant N. gonorrhoeae.
- 22M.1A.HL.TZ2.19: Some strains of the pathogenic bacterium Staphylococcus aureus have developed mechanisms that...
-
22M.1A.HL.TZ1.21:
The graph shows the proportion of a bacterial population of Neisseria gonorrhoeae, displaying resistance to the antibiotic tetracycline.
[Source: © All rights reserved. Canadian Antimicrobial Resistance Surveillance System Report, 2016. Public Health Agency of Canada. Adapted and reproduced with permission from the Minister of Health, 2022.]
What can be deduced from this graph?
A. Bacteria with beneficial adaptations survive and pass on their genes.
B. Immunity to tetracycline is triggered by over-use of the antibiotic.
C. Genetic variation in this bacterial population is increasing.
D. Use of tetracycline inhibits the growth of antibiotic-resistant N. gonorrhoeae.
- 22M.1A.HL.TZ2.19: Some strains of the pathogenic bacterium Staphylococcus aureus have developed mechanisms that...
-
22M.1A.HL.TZ1.21:
The graph shows the proportion of a bacterial population of Neisseria gonorrhoeae, displaying resistance to the antibiotic tetracycline.
[Source: © All rights reserved. Canadian Antimicrobial Resistance Surveillance System Report, 2016. Public Health Agency of Canada. Adapted and reproduced with permission from the Minister of Health, 2022.]
What can be deduced from this graph?
A. Bacteria with beneficial adaptations survive and pass on their genes.
B. Immunity to tetracycline is triggered by over-use of the antibiotic.
C. Genetic variation in this bacterial population is increasing.
D. Use of tetracycline inhibits the growth of antibiotic-resistant N. gonorrhoeae.
- 22M.1A.HL.TZ2.19: Some strains of the pathogenic bacterium Staphylococcus aureus have developed mechanisms that...
-
SPM.1A.HL.TZ0.40:
Domestic dogs (Canis familiaris) have evolved from grey wolves (Canis lupus). Evidence suggests that the domestication of dogs first occurred around 30 000 years ago. Which best describes the evolution giving rise to the domestic dog?
A. The wolf produced offspring in large numbers which underwent natural selection.B. Variations in the wolf population that resembled modern dogs favoured wolf survival.
C. Wolves showing favourable traits were selected for breeding.
D. Dogs were better suited to changes in the natural environment than wolves.
-
23M.2.HL.TZ1.3a:
Explain how natural selection could increase the prevalence of an antibiotic resistance gene in a species of soil bacterium.
-
23M.2.HL.TZ1.a:
Explain how natural selection could increase the prevalence of an antibiotic resistance gene in a species of soil bacterium.