ecosystem
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ecosystem - Leaderboard
ecosystem - Details
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36 questions
| 🇬🇧 | 🇬🇧 |
| Flora and fauna in lakes and ponds is | Lentic biota |
| The role of bacteria in the carbon cycle is | Decomposition of organic compounds |
| Mr X is eating curd/yogurt.for his food intake in a food chain mr X should be considered occupying | Third trophic level |
| Explain the pyramid of biomass in a lake | This pyramid is inverted because there is gradual increase in biomass of organisms at successive trophic levels from the producers to the consumers. |
| In the vast marine ecosystem, certain sea develop red colouation. this red colour is due to the presence of large population of | Trichodesmium erythrium |
| Most of the desert plant bloom at night because | The desert insects are active during night time |
| What is not a function of an ecosystem | Stratification |
| Insectivorous habitat of plants is to cope up with | Nitrogen deficiency |
| Pyramid of energy is always upright because | Energy flow in the ecosystem is unidirectional and according to lindemann, only 10 per cent of the energy goes to the next level |
| Biotic community has higher position than population in ecological heirarchy | Biotic community is an assemblage of all the populations of different organisms occuring in an area. the different populations of a community do not remain isolated. they show interactions and interdependance |
| In an ecosystem the rate of production of organic matter during photosynthesis is termed as | Gross primary productivity |
| The biomass available for consumption by the herbivores and the decomposers is called | Net primary productivity |
| The slow rate of decomposition of fallen logs in nature is due to their | Low moisture content |
| Which plants do not have stomata | Submerged hydrophytes |
| Greatest producers of organic matter are | Phytoplanktons of oceans |
| Which ecosystem has the maximum biomass | Forest ecosystem |
| Characteristic feature of cropland ecosystem | Least genetic diversity |
| During ecological succession | The gradual and predictable change in species composition occurs in a given area |
| An association of individuals of different species living in the same habitat and having functional interaction is | Biotic community |
| Correct sequence of plants in a hydrosere is | Volvox-->hydrosere-->pistia-->scirpus-->lantana-->oak |
| An ecosystem which can be easily damaged but can recover after some time if damaging effect stops will be having | Low stability and high resilience |
| Bamboo plant is growing in a fir forest then what will be the trophic level of it | First trophic level |
| In a food chain, the largest population is that of | Primary consumer |
| Pyramid of numbers deals with the number of | Individuals in a trophic level |
| Barophilic prokaryotes | Grow and multiply in very deep marine sediments |
| If by radiation all nitrogenase enzymes are inactivated, then there will be no | Fixation of nitrogen in legumes |