1. producers
2. Primary consumers
3. Secondary consumers
4. Top consumers
Primary consumers
1. Open
2. Closed system
3. Cut off system
4. Biogeochemical system
Closed system
1. Wheat
2. Rice
3. Sugarcane
4. Grams
Wheat
1. Phytoplankton
2. Grassland
3. Forests
4. herbs and shrubs
Phytoplankton
1. Wheat crop field
2. Pond ecosystem
3. Green field
4. Deciduous forest
Deciduous forest
1. 9%
2. 10%
3. 48%
4. 33%
33\%
1. high temp. and excess rain
2. low temp. and excess rain
3. high temp. and less rain
4. wild animals like tigers, lions, bears
high temp. and excess rain
1. Reaction wood formation
2. Absence of secondary growth
3. Absence of leaves
4. Absence of more branches
Reaction wood formation
1. atmosphere
2. ocean
3. organisms
4. rocks
rocks
1. producers
2. Decomposers in succession
3. Primary consumers
4. Producers-consumers-decomposers
Producers-consumers-decomposers