Ecosystems

What are some human activities that affect ecosystems?

• Factories, pollution, overfishing, and deforestation

• Planting trees and conserving water

• Recycling and using renewable energy

• Creating wildlife reserves and protected areas

What do producers do in an ecosystem?

• Producers, like plants, use sunlight to create their own food through photosynthesis.

• Producers consume other organisms for energy.

• Producers decompose organic matter to enrich the soil.

• Producers rely on consumers for their energy needs.

What is an ecosystem?

• A community of living organisms interacting with each other and their environment.

• A large area of land covered with trees and plants.

• A system of government that regulates environmental policies.

• A collection of nonliving things in a specific location.

What is the starting point of a food chain?

• The food chain starts with the sun giving energy to producers.

• The food chain starts with decomposers breaking down organic matter.

• The food chain starts with herbivores consuming plants.

• The food chain starts with carnivores hunting other animals.

How do organisms in an ecosystem interact?

• By working together and forming symbiotic relationships.

• By competing for resources and forming food chains.

• By living in isolation from one another.

• By migrating to different ecosystems for survival.

What is a population in an ecosystem?

• A group of different species living together in an area.

• A group of the same species living in a specific area.

• The total number of organisms in a given area.

• A collection of habitats within a biome.

What is deforestation?

• The process of planting trees in a forest.

• The clearing of trees from forests, which can harm ecosystems.

• A method of sustainable forestry management.

• The practice of using trees for building materials.

What is a community in an ecosystem?

• A community is a group of different species living in isolation.

• A community is made up of different populations of organisms living together in an area.

• A community consists only of plants in a specific region.

• A community is a single species that dominates an area.

What is a food chain?

• A sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

• A list of all the organisms in a habitat.

• A diagram that represents the physical structure of an ecosystem.

• A method of classifying organisms based on their diet.

What is the importance of decomposers in an ecosystem?

• Decomposers break down dead organisms, returning nutrients to the soil and helping the ecosystem recycle materials.

• Decomposers produce energy through photosynthesis, supporting plant growth.

• Decomposers compete with plants for sunlight and nutrients, hindering their growth.

• Decomposers create new organisms from inorganic materials, enhancing biodiversity.