MODEL SUBJECTIVE QUESTION:
- Discuss scope and development of ecology.
- Give types of communities.
- Write note on ecological niche.
- Discuss ecology as an experimental science.
- Give different applications of ecology.
- What is environment? What types of it are included?
Ans: The physical and biological conditions under which an organism lives is called environment. The environment may organic or inorganic. Organic environment includes all the living organisms. Inorganic environment includes light, temperature. soil fire, wind etc.
- What is Organismal ecology?
It is also called autecology or physiological ecology. It is concerned with the behavioural, physiological and morphological ways of living of an organism. Each organism has certain limits of tolerance. These limits determine the habitat of the organism.
- Define population.
Ans: The group of inter-breeding individuals belonging to same species and living in a common geographic area is called population.
- Differentiate between community and biome.
Ans: All populations within an ecosystem are known as a community. The major regional ecological community of plants and animals are called biomes.
- Differentiate between biome and ecosystem.
Ans: The major regional ecological community of plants and animals are called biomes.
- Differentiate between biotic and abiotic components.
(a) Ans: Biotic component: Biotic components consist of animals. plants, fungi, micro-organisms etc: and
(b) Abiotic components: Abiotic components are atmosphere. climate, soil, and water.
- Differentiate between autecology and synecology.
Ans: The study of relationship of a single population to its environment is called autecology. The study of relationship of different communities or group of population to their environment is called synecology or community ecology.
- What is ecological niche? Which thing does it represents?
Ans: The basic role or profession of an organism in a community is called ecological niche. Niche is a distributional unit. The physical structure and pin siological limitations keep species in this distributional unit.
- Differentiate between deforestation and reforestation.
Ans: Clearance of vast areas of forest for lumber, planting subsistence crops or grazing cattle is called as delbrestation. The replantation of trees in a forest is called reforestation.
- What is range land and range land management?
Ans: The grass land used by the animals for grazing is called rangeland. The application of science on rangeland for producing maximum number of grazing livestock regularly is called rangeland management.