Short Answer Type
Long Answer Type1. Light. 2. Temperature. 3. Water. 4. Soil.
1. Importance of light. It is important for photosynthesis, flowering in plants, plant growth, metabolism, and periodicity.
2. Effect of temperature. It is the most important factor affecting almost all activities of organisms.
3. Effect of Water- Water is essential for life. It covers more than 70% of the earth’s surface and forms the most extensive habitat for the organisms. Types of plants and animals distributed in water bodies greatly depends upon the nature of water (fresh-water or sea water). Land plants derive water from the soil while the land animals derive water from pools, ponds, lakes, rivers, springs etc.
4.Effect of Soil - Soil provides the necessary nutrition and minerals for the growth of plants and also provides shelter to anumber of organisms.
(a) adaptations of desert plants and animals.
(b) adaptations of plants to water scarcity.
(c) behavioural adaptations in animals.
(d) importance of light to plants.
(e) Effect of temperature or water scarcity and the adaptations of animals.
Define the following terms and give one example for each:
(a) Commensalism
(b) Parasitism
(c) Camouflage
(d) Mutualism
(e) Interspecific competition
Short Answer TypeLong Answer Type
Switch
