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Ecology: Definitions and Concepts, Exams of Ecology and Environment

A basic introduction to key concepts in ecology, covering fundamental definitions and relationships within ecosystems. It explores topics such as symbiosis, predator-prey interactions, food chains and webs, and the role of producers, consumers, and decomposers. The document also touches upon population dynamics, carrying capacity, and limiting factors. While it offers a starting point for understanding ecological principles, it lacks in-depth analysis and practical applications.

Typology: Exams

2024/2025

Available from 03/08/2025

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Ecology Questions and Answers Already
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Ecology
Scientific study of interactions among organisms and between organisms and their environment
Ecologist
Studies animals and the way they interact with their environment
Symbiosis
A relationship in which two different organisms live in close association with each other
Mutualism
A relationship between two species in which both species benefit
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Ecology Questions and Answers Already

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Ecology

Scientific study of interactions among organisms and between organisms and their environment

Ecologist

Studies animals and the way they interact with their environment

Symbiosis

A relationship in which two different organisms live in close association with each other

Mutualism

A relationship between two species in which both species benefit

Commensalism

A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited

Parasitism

A relationship between two organisms of different species where one benefits and the other is harmed

Habitat

Place where an organism lives

Consumer

An organism that eats other organisms

Producer

An organism that can make its own food.

Herbivore

A consumer that eats only plants.

Carnivore

An animal that eats other animals

Omnivore

An animal that eats both plants and animals

Decomposer

An organism that breaks down wastes and dead organisms

Food Chain

A series of steps in which organisms transfer energy by eating and being eaten

A group of interdependent organisms inhabiting the same region and interacting with each other

Ecosystem

A system formed by the interaction of a community of organisms with their physical environment

Biosphere

Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.

Solar System

A star orbited by planets.

Galaxy

A collection of stars, dust, and gas bound together by gravity

Universe

All of space and everything in it

Abiotic

Non-living

Biotic

Resources

Items needed to survive: water, air, space, light, shelter

Evolution

Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms.

Carrying Capacity

The largest population that an area can support

Limiting Factors

Conditions in the environment that put limits on where an organism can live

Energy Pyramid

A diagram that shows the amount of energy that moves from one feeding level to another in a food web