1.Plants are really important for the planet and for all living things. Plants absorb carbon dioxide and release oxygen from their leaves, which humans and other animals need to breathe. Living things need plants to live - they eat them and live in them. Plants help to clean water too.
2.Fish play an important role in nutrient cycles because they store a large proportion of ecosystem nutrients in their tissues, transport nutrients farther than other aquatic animals and excrete nutrients in dissolved forms that are readily available to primary producers. also fish are important to man evonomically because they serves as food and they give by-product.
3.Human can do good things for animals: help save endangered species by breeding more animals and saving their environment; making sick animals healthy, and caring for animals who can no longer live in the wild. Humans can also cause harm to animals, on purpose or by accident
4.cows are able to convert the energy in a way that we as humans could not do. Cattle also provide us with many other by-products – parts of the cow that are used to make products for home, health, food and industry.
5. birds help maintain sustainable population levels of their prey and predator species and, after death, provide food for scavengers and decomposers. Many birds are important in plant reproduction through their services as pollinators or seed dispersers.
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