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OCR A Level Biology A H420/01 JUNE 2023 MARK SCHEME: Biological processes
- Exam (elaborations) • 35 pages • 2023
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OCR A Level Biology A H420/02 JUNE 2023 MARK SCHEME > Biological diversity
- Exam (elaborations) • 29 pages • 2024 Popular
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OCR A Level Biology A H420/01 JUNE 2023 MARK SCHEME > Biological processes
- Exam (elaborations) • 35 pages • 2024
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- $17.99
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This is the final mark scheme
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OCR A Level Biology A H420/03 JUNE 2023 MARK SCHEME > Unified biology
- Exam (elaborations) • 35 pages • 2024
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This is the final mark scheme
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OCR A Level Biology Exam| Questions With Verified Answers | Graded A| 2024
- Exam (elaborations) • 32 pages • 2024
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OCR A Level Biology Exam| Questions With Verified Answers | Graded A| 2024 
 
What is a light microscope used for? Correct Answer Observing living and dead specimins 
 
What are the pros and cons of a light microscope? Correct Answer Pros: Cheap, portable, easy to use, can study living specimens. Cons: Limited magnification, poor resolution. 
 
What is a laser scanning confocal microscope used for? Correct Answer Creating a high resolution, high contrast image, at different depths of the specime...
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OCR A-Level Biology Updated Questions And Verified Answers With Complete Solutions| Graded A|
- Exam (elaborations) • 49 pages • 2024
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OCR A-Level Biology Updated Questions And Verified Answers With Complete Solutions| Graded A| 
 
What is Cell signalling? Correct Answer When cells communicate by signalling, one cell releases a chemical•This chemical is detected by another cell•The second cell then responds to this signal 
 
What are the two Cell signalling systems Correct Answer There are 2 major systems of communication: 
Neuronal System• 
via Network of neurons• 
Quick signals• 
Rapid responses 
Hormonal System•...
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OCR A Level Biology A H420/02 JUNE 2023 QUESTION PAPER AND MARK SCHEME
- Package deal • 2 items • 2024
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OCR A Level Biology A H420/01 JUNE 2023 QUESTION PAPER: Biological processes
- Exam (elaborations) • 48 pages • 2024
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- $17.99
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This is the official question paper
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OCR A Level Biology A H420/03 JUNE 2023 QUESTION PAPER: Unified biology
- Exam (elaborations) • 36 pages • 2024
- Available in package deal
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- $17.99
- 2x sold
- + learn more
This is the official question paper
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OCR A Level Biology A H420/02 JUNE 2023 QUESTION PAPER: Biological diversity
- Exam (elaborations) • 42 pages • 2024
- Available in package deal
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- $17.99
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This is the official question paper
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