Ecosystems Test

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with their physical environment (soil, water, and climate).

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What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem, starting from producers to various levels of consumers.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants and algae, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is a consumer?

Back

A consumer is an organism that obtains energy by feeding on other organisms, including herbivores, carnivores, and omnivores.

Front

What are decomposers?

Back

Decomposers are organisms, like fungi and bacteria, that break down dead organic matter, recycling nutrients back into the ecosystem.

Front

What is carrying capacity?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.

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What is a limiting factor?

Back

A limiting factor is a resource or condition that limits the growth, abundance, or distribution of a population within an ecosystem.

Front

How does drought affect an ecosystem?

Back

Drought can reduce water availability, affecting plant growth and, consequently, the entire food chain, leading to a decline in population sizes.

Front

What is population density?

Back

Population density is the number of individuals of a species per unit area, often expressed as individuals per square kilometer.

Front

What is symbiosis?

Back

Symbiosis is a close and long-term interaction between two different species, which can be beneficial, neutral, or harmful to one or both parties.