Edexcel A-Level Biology A: Salters-Nuffield (9BN0) · EDEXCEL 9BN0
2 Development, plants and the environment
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Development, plants and the environment
- A tumour forms when cells in the body divide in an uncontrolled way. Explain how changes i… (5 marks, Explain)
- A student states: 'Sexual reproduction in animals always involves both internal fertilisat… (5 marks, Evaluate)
- A conservation organisation is working to protect a rainforest ecosystem that contains a l… (5 marks, Explain)
- A farmer converts a large area of species-rich grassland into a monoculture crop field, gr… (5 marks, Explain)
- Explain how the structure of phloem tissue is adapted to allow the transport of sucrose th… (5 marks, Explain)
- A patient with a degenerative joint condition is told that doctors could use stem cells fr… (5 marks, Explain)
- A species of peppered moth exists in two forms: a pale speckled form and a dark form. In a… (5 marks, Explain)
- Explain how water moves from the soil into a plant root and then through the plant to the … (5 marks, Explain)
- A population of rock pocket mice lives in a desert environment where the ground is covered… (5 marks, Explain)
- A population of Galápagos finches living on an island with large, hard seeds includes indi… (5 marks, Explain)
- A population of Arctic foxes living in a snowy environment includes individuals with white… (5 marks, Describe)
- Explain how natural selection leads to a population of organisms becoming better adapted t… (5 marks, Explain)
- A coastal wetland ecosystem supports many different species of plants, invertebrates, fish… (5 marks, Explain)
- Biodiversity is important for the stability of ecosystems. Explain why a reduction in biod… (5 marks, Explain)
- Describe the importance of biodiversity and explain how human activities can reduce it. (5 marks, Describe / Explain)
- Explain how xylem tissue is adapted for its function in a plant. (5 marks, Explain)
- A gardener notices that a plant kept in a dark cupboard has grown tall and spindly, with p… (5 marks, Explain)
- Explain how meristem tissue is important for plant growth and describe how cells from meri… (5 marks, Explain)
- A pea plant produces both male gametes and female gametes. Explain how fertilisation in th… (5 marks, Explain)
- A flowering plant reproduces sexually. Explain how the male gamete reaches the female game… (5 marks, Explain)
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