The Path to a Greener Future: Understanding Sustainable Development In an era where environmental challenges and resource depletion are becoming increasingly evident, the concept of sustainable development has gained significant importance. Sustainable development aims to meet the needs of the present without compromising the ability of future generations to meet their own needs. This blog post will explore the principles, goals, and strategies of sustainable development, highlighting its critical role in ensuring a balanced and healthy future for our planet. "Transforming our world: The path to sustainable development." What is Sustainable Development? Sustainable development is a holistic approach that integrates economic growth, environmental protection, and social equity. It seeks to create a harmonious relationship between human activities and the natural world, ensuring that resources are used efficiently and responsibly. Definition: The most widely recognized de...
FOOD CHAIN:
The transfer of food energy from the producers (plants) through a
series of organisms (Herbivores, Carnivores) successively with the repeated
activities of eating and being eaten is known as food chain. In an
ecosystem(s), one organism is eaten by the second who in turn is eaten by the
third and so on... This kind of feeding relationship is called food chain.
Examples of food chain: Plant leaf →Caterpillar →Sparrow →Hawk.
Explanation: A
caterpillar eats a plant leaf, a sparrow eats the caterpillar, and a hawk eats
the sparrow. When they all die, they are all consumed by micro organisms like
bacteria (or) fungi which break down the organic matter and convert it into
simple inorganic substances that can again be used by the plants.
FOOD WEB:
Food web is a net work of food
chains where different types of organisms are connected at different tropic
levels so that there are a number of options of eating and being eaten at each
tropic level. (A tropic level refers to an organism’s position in the food chain).
Examples of food web:
1. Grass→ Grasshopper→ Lizard→ Hawk
2. Grass→ Rabbit→ Hawk
3. Grass→ Mouse→ Hawk
4. Grass→
Mouse→ Snake→ Hawk
ECOLOGICAL PYRAMID:
Ecological
pyramids were first studied by a British ecologist Charles Eltan (1927). An
Ecological Pyramid is a graphical representation consisting various tropic
levels with producers forming the base and top occupy the carnivores. In an
ecological pyramid the huge numbers of tiny individuals form at the base and a
few large individuals occupy the top / apex. This formation is known as
ecological pyramid. Hence, all producers (micro & macro plants) belong to
the I tropic level; all primary consumers belong to II tropic level and
organisms feeding on these consumers belong to the III tropic level and
so on.
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