A sycamore tree is a producer for many food chains in a forest ecosystem.
Explain what is meant by:
The diagrams show a pyramid of numbers and a pyramid of biomass for a sycamore tree.
Explain the different shapes of the two pyramids.
Sycamore trees produce flowers that are insect-pollinated. Suggest two features of flowers which adapt them for insect-pollination.
State the type of cell division that produces pollen grains.
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