Curriculum
Course: Igcse Biology
time left:
:
:
Login

Curriculum

Igcse Biology

1. Characteristics and Classification of Living Organisms

0/17

2. Organisation of the Organism

0/15

3. Movement into and out of Cells

0/12

4. Biological Molecules

0/10

5. Enzymes

0/11

6. Plant Nutrition

0/12

7. Human Nutrition

0/27

8. Transport in Plants

0/21

9. Transport in Animals

0/16

10. Diseases and Immunity

0/12

11. Gas Exchange in Humans

0/9

12. Respiration

0/13

13. Excretion in Humans

0/13

14. Coordination and Response

0/32

15. Drugs

0/9

16. Reproduction

0/31

17. Inheritance

0/31

18. Variation and Selection

0/14

19. Organisms and their Environment

0/24

20. Human Influences on Ecosystems

0/21

21. Biotechnology and Genetic Modification

0/12
Quiz

Variation & Natural Selection – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit

Variation & Natural Selection IGCSE Biology check yourself quiz: free practice for IGCSE Biology. Work through this Variation & Natural Selection IGCSE Biology check yourself quiz and get instant feedback on every answer. If you get stuck, review the 18.3 Selection — Notes lesson. More practice: IGCSE Biology — all units. Syllabus: Cambridge IGCSE Biology 0610 syllabus.

  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
Which is an example of discontinuous variation?
Height
Body mass
ABO blood group
Leaf length
2.
What is the source of new alleles?
Mutation
Fertilisation
Selective breeding
Mitosis
3.
Which feature helps a cactus reduce water loss?
Large thin leaves
Stomata on upper surface
Spines instead of leaves
Large air spaces
4.
In artificial selection, who chooses which individuals breed?
The environment
Predators
Humans
Pathogens
5.
Why do antibiotic-resistant bacteria become more common?
Antibiotics cause resistance mutations directly
Resistant bacteria survive and reproduce while others die
Bacteria learn to resist
Resistant bacteria reproduce sexually
6.
Which graph is best for continuous data such as height?
Pie chart
Bar chart with gaps
Line graph over time
Histogram
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Part of 18. Variation and Selection — see every lesson and quiz in this unit.
Accepted payment methods