Edexcel International GCSE Biology
Edexcel International GCSE Biology The Organism in the Environment Exam Questions
Free Edexcel International GCSE Biology exam questions on The Organism in the Environment, with mark schemes. Covers populations, communities, ecosystems and sampling with quadrats.
The Organism in the Environment exam questions
These packs of real past exam questions cover the whole of Section 4: Ecology and the Environment, including The Organism in the Environment. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
Edexcel IGCSE Biology 4BI1 Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About Edexcel International GCSE Biology The Organism in the Environment
This sub-topic covers organisms and their surroundings.
What you need to know
- Terms Population, community, habitat and ecosystem.
- Sampling Quadrats and transects.
- Factors Biotic and abiotic factors affecting distribution.
Common mistakes in The Organism in the Environment
- Placing quadrats non-randomly.
- Mixing community and population.
Try two The Organism in the Environment exam-style questions
1. Define population. (1 mark)
Show the mark scheme answer
All the organisms of one species in an area.
2. Describe how to estimate a population with quadrats. (2 marks)
Show the mark scheme answer
Place quadrats randomly and count organisms (1); find the mean and scale up to the total area (1).
The Organism in the Environment FAQs
What does this cover?
Ecological terms and sampling.
Which practical links here?
Using quadrats to sample organisms.
Revise this topic with flashcards: Edexcel IGCSE Biology 4BI1 Flashcards, with mark scheme answers for Anki and Quizlet.
