Question

1. Ecosystem
2. Producer
3. Consumer
4. Primary consumer
5. Secondary consumer
6. Tertiary consumer
7. Decomposer
8. Food chain
9. Food web
10. Trophic level
11. Biomass
12. Primary productivity
13. Net primary productivity
14. Energy pyramid
15. Detritivore
vocabulary shortish

Answer 1

1. Ecosystem — A community of living organisms plus their physical (abiotic) environment interacting as a system.
2. Producer — An organism (autotroph) that makes organic matter from sunlight or chemicals (e.g., plants, algae).
3. Consumer — An organism (heterotroph) that obtains energy by eating other organisms.
4. Primary consumer — Herbivore that eats producers (plants or algae).
5. Secondary consumer — Carnivore or omnivore that eats primary consumers.
6. Tertiary consumer — Predator that eats secondary consumers; often a top-level predator.
7. Decomposer — Organisms (e.g., fungi, bacteria) that chemically break down dead organisms and recycle nutrients.
8. Food chain — A simple, linear sequence showing who eats whom in an ecosystem.
9. Food web — A network of interconnected food chains showing multiple feeding relationships.
10. Trophic level — A step or position in a food chain/web (producers = 1st level, etc.).
11. Biomass — The total mass of living organisms in a given area or at a trophic level.
12. Primary productivity — The rate at which producers convert energy (usually sunlight) into organic matter (gross).
13. Net primary productivity — Primary productivity minus producers’ respiration; the energy available to consumers.
14. Energy pyramid — A diagram showing the decrease of available energy at successive trophic levels.
15. Detritivore — An organism that eats dead organic matter (detritus), physically breaking it down (e.g., earthworms, vultures).