ECOLOGY
HUMANS AND THE BIOSPHERE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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gives us interesting things to look at.
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tells us about many other species.
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is the biological life-support system of our planet and the food web
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provides humans with resistance to disease.
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Detailed explanation-1: -Biodiversity is the key indicator of the health of an ecosystem. A wide variety of species will cope better with threats than a limited number of them in large populations. Even if certain species are affected by pollution, climate change or human activities, the ecosystem as a whole may adapt and survive.
Detailed explanation-2: -Agricultural biodiversity is essential to satisfy basic human needs for food and livelihood security. Biodiversity, food and nutrition interact on a number of key issues. It contributes directly to food security, nutrition and well-being by providing a variety of plant and animals from domesticated and wild sources.
Detailed explanation-3: -Biodiversity supports human and societal needs, including food and nutrition security, energy, development of medicines and pharmaceuticals and freshwater, which together underpin good health. It also supports economic opportunities, and leisure activities that contribute to overall wellbeing.
Detailed explanation-4: -Biodiversity provides “raw materials” for the food chain and seafood production, and also influences the capacity of ecosystems to perform these and other services. Harvested marine seafood species now exceed 100 million t y(-1) and provide about 6% of all protein and 17% of animal protein consumed by humans.