Question 2: 2. The diagram below shows plants and their algal ancestors. A, B and C indicate key structural evolution of higher plants. Study the diagram and answer the questions which follow. gymnosperms angiosperms B non-vascular plants seedles
vascular plants

2.1 Name the most important adaptation(s) that evolved at each of the positions labels A, B and C.

2.2 Which division of plants is represented as non-vascular plants in the diagram?

2.3 Explain why seedless vascular plants are able to grow taller than the nonvascular plants.
2.4 In what way are the seeds of gymnosperms different to seeds of angiosperms?

2.5 What is the collective name for all seed-bearing plants? ​