1. Lichen,moss stage,annual herb stage,perennial herb stage,scrub stage,forest
2. Annual herb stage,perennial herb stage,lichen,moss stage,scrub stage,forest
3. Perennial herb stage,annual herb stage,lichen,moss stage,scrub stage,forest
4. Scrub stage,forest,annual herb stage,perennial herb stage,lichen,moss stage
5. Forest,scrub stage,annual herb stage,perennial herb stage,lichen,moss stage
Lichen,moss stage,annual herb stage,perennial herb stage,scrub stage,forest
1. Continuum
2. Bio indicator
3. Succession
4. Pyramid of number
Continuum
1. Different species
2. Same species
3. Same species in a specific area
4. Different species in a specific area
5.
Different species in a specific area
1. Vallisneria and pond
2. Desert locust and desert
3. Plant lice and leaf
4. Vultures and denes forest
Plant lice and leaf
1. Continues to increase
2. Becomes halved
3. Becomes stable
4. Becomes zero
5. Becomes 10%
Becomes stable
1. Early and continued dominance of autotrophic organism takes place like green plants
2. Replacement of existing communities cause largely by any other external condition
3. Early dominance of heterotrophs takes place such as bacteria,fungi and other animals
4. Community itself modifies its own environments thus causing its own replacement by new communities
5. Starts with previously built up substrata with already existing matter
Community itself modifies its own environments thus causing its own replacement by new communities
1. Ecotone
2. Keystone species
3. Edge effect
4. Critical link speices
5. Edge speices
Ecotone
1. Plant community
2. Animal ecosystem
3. Plant ecosystem
4. Ecological niche
Plant community
1. It show energy content of different tropic level of organisms
2. It is inverted in shape
3. It is upright in shape
4. Its base is board
It is inverted in shape
1. In an aquatic ecosystem,grazing food chain is the major conduit for energy flow
2. In terrestrial ecosystems,a large fraction of energy flows through detritus food chain
3. The detritus food chain beings with dead organic matter
4. Primary consumers belong to the first trophic level
5. Animals like cockroaches and crows are omnivores
Primary consumers belong to the first trophic level