10.2 (2 lessons) Flashcards
1
Q
What is a biosphere?
A
All life-supporting environments on the Earth’s surface.
2
Q
What percentage of energy is passed on at each stage in a food chain?
A
10%
3
Q
What is gross primary productivity?
in plants
A
Rate at which plants capture sunlight to produce new plant material.
4
Q
What is net primary productivity ?
A
Energy transferred into biomass, available to next trophic level.
