7.1 Adaptations, interdependence and competition

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Question 10
Medium
a.

Dandelions:

  • are herbaceous perennial plants
  • require sunlight for photosynthesis
  • absorb water and mineral ions from the soil through roots
  • are food for herbivores such as rabbits.

Give two abiotic factors and two biotic factors that could affect the population size of dandelions.

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b.

Students investigated the populations of dandelions in two different grassy fields:

  • Area A: a school playing field that is frequently mown
  • Area B: a local nature reserve meadow that is rarely mown

Plan an investigation using a 0.5 m×0.5 m0.5 \text{ m} \times 0.5 \text{ m}0.5 m×0.5 m quadrat to compare the mean number of dandelions per m2\text{m}^2m2 in Area A and Area B.

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7.1 Adaptations, interdependence and competition Questions

  1. GCSE
  2. /Biology
  3. /7.1 Adaptations, interdependence and competition