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3. The Earth is a living system. It is an indivisible, interdependent and interrelated community comprised of human beings, nature, the atmosphere, the hydrosphere, and the geosphere. Any substantive alteration of one of its components can affect other areas and the entire system. The Earth is the source of life.
All living organisms pursue their own "good" in their own ways. Human beings are not inherently superior to other living things. [8] The most important of these four main pillars is likely the idea that human beings are not inherently superior to other living things. People have divergent views on many specific aspects of almost everything.
An example of an ecosystem service is pollination, here by a honey bee on avocado crop. Ecosystem services are the various benefits that humans derive from healthy ecosystems. These ecosystems, when functioning well, offer such things as provision of food, natural pollination of crops, clean air and water, decomposition of wastes, or flood ...
An example of the biodiversity of fungi in a forest in North Saskatchewan (in this photo, there are also leaf lichens and mosses). Biodiversity is the variability of life on Earth. It can be measured on various levels. There is for example genetic variability, species diversity, ecosystem diversity and phylogenetic diversity. [1]
For example, in America in 2012 there were some 78 million dogs, 86 million cats, and 3.5 million rabbits. [55] [56] [57] There is a tension between the role of animals as companions to humans, and their existence as individuals with rights of their own. [58] Many animals are hunted for sport. [59]
Commensalism benefits one organism and the other organism is neither benefited nor harmed. It occurs when one organism takes benefits by interacting with another organism by which the host organism is not affected. A good example is a remora living with a manatee. Remoras feed on the manatee's faeces.
Ecosystem diversity addresses the combined characteristics of biotic properties which are living organisms (biodiversity) and abiotic properties such as nonliving things like water or soil (geodiversity). It is a variation in the ecosystems found in a region or the variation in ecosystems over the whole planet.
Ecosystem-based Adaptation (EbA) describes a variety of approaches for adapting to climate change, all of which involve the management of ecosystems to reduce the vulnerability of human communities to the impacts of climate change such as storm and flood damage to physical assets, coastal erosion, salinisation of freshwater resources, and loss of agricultural productivity.