Explain each of the following terms from your study of ecology - Leaving Cert Biology - Question 5 - 2010
Question 5
Explain each of the following terms from your study of ecology.
(a) Biosphere
(b) Ecosystem
(c) Habitat
(d) Symbiosis
(e) Biotic factor
(f) Food Web
(g) Fauna
Worked Solution & Example Answer:Explain each of the following terms from your study of ecology - Leaving Cert Biology - Question 5 - 2010
Step 1
Biosphere
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The biosphere refers to the parts of the Earth, including land, water, and the atmosphere, that support life. It encompasses various ecosystems and is essential for the survival of living organisms.
Step 2
Ecosystem
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An ecosystem is a community of living organisms and their interactions with the surrounding environment. This includes both biotic (living) elements and abiotic (non-living) factors, such as climate and soil.
Step 3
Habitat
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A habitat is the natural environment in which a species or organism lives. It provides essential resources such as food, shelter, and mates for reproduction.
Step 4
Symbiosis
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Symbiosis describes the relationship between different species where at least one species benefits. This can take various forms, including mutualism, commensalism, and parasitism.
Step 5
Biotic factor
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A biotic factor refers to any living organism's influence on another organism within an ecosystem. This includes interactions like predation, competition, and symbiosis.
Step 6
Food Web
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A food web consists of interconnected food chains, illustrating the relationship between various species at each trophic level within an ecosystem. It highlights how energy and nutrients flow within the community.
Step 7
Fauna
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Fauna refers to the animal life of a particular region or habitat. It includes all the animal species present in an ecosystem.
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