A functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment, is called as:
1. A population 2. A species
3. A biological community 4. An ecosystem
Subtopic:  Introduction |
 90%
Level 1: 80%+
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Vertical distribution of different species occupying different levels in an ecosystem is called:
1. Stratification 2. Scarification
3. Standing crop 4. Standing state
Subtopic:  Introduction |
 93%
Level 1: 80%+
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