Biology / Unit 10 Bio 2207 short lesson, about 20 seconds
Ecological and Economic Role of Seed Plants
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The idea
Seed plants anchor most terrestrial food webs as primary producers, stabilize soil with root systems, and supply most of humanity's food, fiber, and timber.
In practice
Cereal grains such as wheat, rice, and corn, all angiosperms, supply a large share of calories humans consume worldwide.
Where people slip
Gymnosperms remain ecologically significant despite angiosperm dominance in most ecosystems — conifer forests still cover vast high-latitude land.
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