1. Active cooperation between two species
2. Two different parasites on the same host
3. Sharing of one or more resources between the two species
4. Mutualism between two species
Two different parasites on the same host
1. Different animals of same niche
2. Same animals of same niche
3. Different animals of different niche
4. Same animals of different niche
Same animals of same niche
1. Shark and sucker fish-commensalism
2. Red algae and fungi in lichens-mutualism
3. Orchids growing on trees-parasitism
4. Cuscuta growing on other flowering plants-epiphysis
Shark and sucker fish-commensalism
1. Stomata
2. Abundant air sacs
3. Well developed mechanical tissue
4. Secondary growth
Abundant air sacs
1. Sunken stomata
2. Reduced leaves
3. Well developed root system
4. All of the above
All of the above
1. Symbiosis
2. Parasitis
3. Commensaliam
4. Predation
Parasitis
1. Sympatric
2. Allopatric
3. Sibling
4. Keystone
Sympatric
1. Natural increase of population under ideal/optimum conditions
2. Potential of organisms in a biome
3. Number of organisms in a biome
4. Species of maximum number in a population
Natural increase of population under ideal/optimum conditions
1. Calculated on percentage
2. Calculated on frequency
3. Both (a) and (b)
4. Calculated on original data
Calculated on original data
1. Commensalism
2. Mutualism
3. Colony
4. Sympathy
Mutualism