PowerPoint on The Biosphere, Biomes and Ecosystems
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Course
Life Sciences
Institution
10th Grade
This PowerPoint contains 107 slides focussing on the Biosphere, Biomes and Ecosystems. It is great for studying, revision and exam prep or just that Bio test coming up next week. I would recommend this for grade 10 and 11 but if you are a brave grade 9, why not? It is on the IEB standards of educa...
THE BIOSPHERE, BIOMES, ECOSYSTEMS
& ANIMAL RELATIONSHIPS
, Definitions
• Ecology = study of the Earth & the interaction of organisms
with their physical environment & with one another (‘oikos’ =
our home)
• Biosphere = all parts of Earth where living things exist
(atmosphere, lithosphere, hydrosphere)
• Biodiversity = diversity of life on Earth or in a particular area
• Abiotic = non-living elements of an environment
• Biotic = living elements of an environment
• Ecosystem = all living organisms interacting with their non-
living environment in a particular area
• Sustainable practice = a practice maintained over time not
causing damage or depletion
, Biosphere
• Atmosphere = thin layer of air around the
Earth (incl. troposphere; stratosphere)
• Hydrosphere = all forms of water on or around
Earth
• Lithosphere = crust (nutrients) & upper mantle
(fossil fuels & minerals)
