3.1 What is ecology – Flashcards
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scientific study of interactions among organisms and between organisms and their physical environment
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ecology
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all life on Earth and all parts of the Earth in which life exists including land, water, and the atmosphere
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biosphere
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biosphere extends from
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8km above Earth's surface to 11km below the earth's surface
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iterations within the biosphere produce a ______ of interdependence between ___________ and the ___________ in which they live
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web; organisms; environments
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Organisms _____ to their environments and can _________ their environments producing an ever changing ___________.
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respond; change; biosphere
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concerned with interactions based on money
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economics
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levels of ecological organization
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organism; population; community; ecosystem; biome; biosphere
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population
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a group of organisms that belong to the same species and live in the same area
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population needs
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number and location
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community
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assemblage of different populations that live together in a defined area
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ecosystem
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all of the organisms that live in a location along with their physical environment
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biome
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group of ecosystems that share similar climates and typical organisms
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biosphere
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our entire planet, with all its organisms and physical environments
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living influences of an organism
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biotic factor
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physical components of a ecosystem
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abiotic factors
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biotic factor
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any living part of the environment with which the organism interacts
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abiotic factor
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any nonliving part of an environment
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examples of biotic factors
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algae, bacteria, plants
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examples abiotic factors
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viruses, weather, sunlight, temperature
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_________ factors can be influenced by the activities of _______ and vice versa.
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Abiotic; organisms
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a dynamic mix of biotic and abiotic factors shapes every
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enviornment
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What methods are used in ecological studies?
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observation, experimentation, and moedling
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artificial environment in lab used to test hypotheses
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experimentation
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help understand large phenoma
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modeling
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ask questions after seeing something
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observation
