ECOSYSTEM Set 4

Chemoautotrophs ✘ Photoautotrophs ✘ Heterotrophs ✘ Chemotrophs ✔ NULL ✔ NULL NULL

Carbon cycle ✘ Geochemical cycle ✘ Biogeochemical cycle ✘ Chemical cycle ✔ NULL ✔ NULL NULL

Phytosociology ✘ Phytogeography ✘ Ecosystem ✘ Ecology ✔ NULL ✔ NULL NULL

Ecological pyramid ✘ Tropical level ✘ Pi chart ✘ Pyramid of biomass ✔ NULL ✔ NULL NULL

Primary productivity ✘ Secondary productivity ✘ Net primary productivity ✘ Productivity ✔ NULL ✔ NULL NULL

Nekton ✘ Benthos ✘ Viruses ✘ None of these ✔ NULL ✔ NULL NULL

Already has soil and some vegetation ✘ Is soilless ✘ Is barren ✘ None of the above ✔ NULL ✔ NULL NULL

A-plants; B-photosynthesis ✘ A-plants; B-respiration ✘ A-animal; B-respiration ✘ A-animal; B-digestion ✔ NULL ✔ NULL NULL

There will be no disease and death ✘ No antibiotics would become available ✘ Dead bodies and excretions will pile up ✘ Soil will become rich of all nutrients ✔ NULL ✔ NULL NULL

A-Biotic, B-Abiotic, C-Autotrophs, D-Heterotrophs, E-Detritivores ✘ A-Biotic, B-Abiotic, C-Producer, D-Primary consumers, E-Detritivores ✘ A-Abiotic, B-Biotic, C-Producer, D-Consumers, E-Detritivores ✘ A-Biotic, B-Chemical, C-Primary consumers, D-Secondary consumers, E-Tertiary consumers ✔ NULL ✔ NULL NULL