IB Biology HL C4.1.1 Populations Questions
Explore population definitions, interbreeding opportunities and species-level counting in ecological examples in IB Biology HL C4.1.1.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Define a population as interacting organisms of the same species living in one area, with opportunities to interbreed.
- Distinguish a population from a community and count populations by identifying each species within a defined area.
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IB Biology HL C4.1.1 Populations Questions question 1
The photograph shows Japanese knotweed, Reynoutria japonica, which is native to Japan, China and Korea. It has been introduced into other regions of the world and is now an invasive alien species in parts of Europe and North America. Dense groups of stems often develop with a height of up to 3 metres, which prevent other plants from growing.
State the biological term for a group of organisms of the same species living in an area.
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