Flashcards on Ecosystem

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What is an ecosystem?

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

Name the main components of an ecosystem.

The main components of an ecosystem are biotic components (living organisms) and abiotic components (non-living factors).

What are the different types of ecosystems?

The different types of ecosystems include terrestrial ecosystems (e.g., forests, deserts), aquatic ecosystems (e.g., oceans, lakes), and freshwater ecosystems (e.g., rivers, ponds).

Explain the concept of food chains in an ecosystem.

A food chain represents the flow of energy and nutrients from one organism to another in an ecosystem. It starts with producers (plants) and ends with decomposers (organisms that break down dead and decaying matter).

What is the role of decomposers in an ecosystem?

Decomposers play a vital role in recycling nutrients by breaking down organic matter and returning essential elements to the environment. They help in the decomposition process and contribute to the nutrient cycle.

Define the term 'ecological niche'.

An ecological niche refers to the specific role and position of an organism within its ecosystem. It includes the interaction with other organisms, habitat requirements, and the resources it utilizes.

What factors can affect the balance of an ecosystem?

Factors such as human activities, climate change, introduction of invasive species, and pollution can disrupt the balance of an ecosystem and negatively impact its biodiversity.

Explain the concept of energy flow in an ecosystem.

Energy flow in an ecosystem refers to the transfer of energy from one organism to another through food chains and food webs. Energy enters an ecosystem through primary producers (plants) and is passed on to consumers.

What are the major types of biomes found in the world?

The major types of biomes found in the world are tundra, taiga, temperate deciduous forest, tropical rainforest, grassland, desert, and aquatic biomes (marine and freshwater).

How do humans impact ecosystems?

Humans impact ecosystems through activities such as deforestation, pollution, overfishing, introduction of non-native species, and climate change. These actions can disrupt natural processes and threaten biodiversity.

What is the importance of biodiversity in an ecosystem?

Biodiversity in an ecosystem supports ecosystem stability, resilience, and productivity. It provides various ecological services such as nutrient cycling, pollination, and pest control.

Explain the concept of a trophic level in an ecosystem.

A trophic level represents the position of an organism in a food chain or food web. It indicates the organism's source of energy and its role as a producer, consumer, or decomposer.

What are the threats to marine ecosystems?

Threats to marine ecosystems include overfishing, pollution (such as oil spills and plastic waste), habitat destruction (coral bleaching and coastal development), and climate change.

Explain the concept of ecological succession in an ecosystem.

Ecological succession refers to the gradual process of change and development in an ecosystem over time. It involves the replacement of one community by another through natural processes.

What are the benefits of conserving ecosystems?

Conserving ecosystems preserves biodiversity, protects natural resources, maintains ecological balance, and ensures the sustainability of essential ecosystem services for future generations.

What is an ecosystem?

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

Name the main components of an ecosystem.

The main components of an ecosystem are biotic components (living organisms) and abiotic components (non-living factors).

What are the different types of ecosystems?

The different types of ecosystems include terrestrial ecosystems (e.g., forests, deserts), aquatic ecosystems (e.g., oceans, lakes), and freshwater ecosystems (e.g., rivers, ponds).

Explain the concept of food chains in an ecosystem.

A food chain represents the flow of energy and nutrients from one organism to another in an ecosystem. It starts with producers (plants) and ends with decomposers (organisms that break down dead and decaying matter).

What is the role of decomposers in an ecosystem?

Decomposers play a vital role in recycling nutrients by breaking down organic matter and returning essential elements to the environment. They help in the decomposition process and contribute to the nutrient cycle.

Define the term 'ecological niche'.

An ecological niche refers to the specific role and position of an organism within its ecosystem. It includes the interaction with other organisms, habitat requirements, and the resources it utilizes.

What factors can affect the balance of an ecosystem?

Factors such as human activities, climate change, introduction of invasive species, and pollution can disrupt the balance of an ecosystem and negatively impact its biodiversity.

Explain the concept of energy flow in an ecosystem.

Energy flow in an ecosystem refers to the transfer of energy from one organism to another through food chains and food webs. Energy enters an ecosystem through primary producers (plants) and is passed on to consumers.

What are the major types of biomes found in the world?

The major types of biomes found in the world are tundra, taiga, temperate deciduous forest, tropical rainforest, grassland, desert, and aquatic biomes (marine and freshwater).

How do humans impact ecosystems?

Humans impact ecosystems through activities such as deforestation, pollution, overfishing, introduction of non-native species, and climate change. These actions can disrupt natural processes and threaten biodiversity.

What is the importance of biodiversity in an ecosystem?

Biodiversity in an ecosystem supports ecosystem stability, resilience, and productivity. It provides various ecological services such as nutrient cycling, pollination, and pest control.

Explain the concept of a trophic level in an ecosystem.

A trophic level represents the position of an organism in a food chain or food web. It indicates the organism's source of energy and its role as a producer, consumer, or decomposer.

What are the threats to marine ecosystems?

Threats to marine ecosystems include overfishing, pollution (such as oil spills and plastic waste), habitat destruction (coral bleaching and coastal development), and climate change.

Explain the concept of ecological succession in an ecosystem.

Ecological succession refers to the gradual process of change and development in an ecosystem over time. It involves the replacement of one community by another through natural processes.

What are the benefits of conserving ecosystems?

Conserving ecosystems preserves biodiversity, protects natural resources, maintains ecological balance, and ensures the sustainability of essential ecosystem services for future generations.

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