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Tropic Movements
Tropic movements are movements caused by an external stimulus coming from one direction only. Depending upon the nature of the stimulus there are various types of tropic movements. The chief stimuli are gravity, light, water and chemical s..
Plant Growth and Movements Summary
f r . Mangrove plants exhibit vivipary. Flowering is under the control of daily length of light (photo period) and temperature. Depending upon the photoperiodic responses, 3 categories of plants exist namely SDP, LDP, and day neutral plants. Flowering is a phytochrome-mediated process. The site o..
Chemotropism
Tropic movements in response to the stimulus of chemicals is called chemotropic movements. Example: Growth of pollen tube through the style towards the embryo sa..
Altitudinal Biomes
Variations in climatic conditions are observed not only in places on different latitudes but also with altitude. The various types of biomes can also be noted with varying altitudes as seen in the slopes of high Himalayan mountains in Asia, Andes in South America and the Rockies..
Coordination in Plants
In case of plants, growth and development is in a coordinated manner. The higher plants do not show locomotion. However, locomotion is seen in structures like sperm cells of ferns and mosses that swim towards the egg. The other movements shown by the plants are associated with the growth ..
Soil profile
The vertical layered structure of soil is called the soil profile. There are 4 main horizons in a soil profile. O - horizon is the organic layer composed of dead organic residues. A - horizon is the top soil, the upper most layer which contains roots. B - horizon is the sub soil. C - horizon i..
The vertical layered structure of soil is called the soil profile. There are 4 main horizons in a soil profile. O - horizon is the organic layer composed of dead organic residues. A - horizon is the top soil, the upper most layer which contains roots. B - horizon is the sub soil. C - horizon i..Coordination in Plants
Coordination in Plants - In case of plants, growth and development is in a coordinated manner. The higher plants do not show locomotion. However, locomotion is seen in structures like sperm cells of ferns and mosses that swim towards the egg. The other movements shown by the plants are as..
Coordination in Plants - In case of plants, growth and development is in a coordinated manner. The higher plants do not show locomotion. However, locomotion is seen in structures like sperm cells of ferns and mosses that swim towards the egg. The other movements shown by the plants are as..Significance of Food Chains
The study of food chains helps in understanding some of the important aspects of the ecosystem in particular and environment in general. The food relationship among the different organisms in an ecosystem The food chains are the living components of the biosphere These are the vehicl..
Forest Resources
Forests are the most important resource of our globe. Naturally formed forests are found in such parts of globe - where the factors of plant growth have been ideal for several centuries. For this reason, they are mostly found in regions of high rainfall and regions of high altitude. The usefulness ..
Biosphere
All the ecosystems of the world together form the biosphere. It consists of all the living organisms and all the regions of the earth and its atmosphere where they live. A Biome is a large unit characterised by flora and fauna found in a specific climatic zone. For e.g., a desert or a tropica..
All the ecosystems of the world together form the biosphere. It consists of all the living organisms and all the regions of the earth and its atmosphere where they live. A Biome is a large unit characterised by flora and fauna found in a specific climatic zone. For e.g., a desert or a tropica..See what our Users say :
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