Exploring Ecological Levels: Organism to Ecosystem

What does an organism refer to in ecological terms?

• A group of different species

• A collection of ecosystems

• A single living entity

• Non-living environmental factors

What is the smallest unit among the following?

• Ecosystem

• Biosphere

• Organism

• Community

What does a population consist of?

• Different species in an area

• One type of organism in a specific area

• All non-living things in an area

• Multiple communities

What level of ecological organization directly follows an individual organism?

• Community

• Population

• Ecosystem

• Biosphere

How is a population defined?

• Multiple ecosystems combined

• Non-living elements in an environment

• A single species in a specific area

• All living things in a pond

What constitutes a community in an ecosystem?

• Only the plant species in an area

• The abiotic factors like water and sunlight

• All the biotic factors in a given area

• Just the animal species within a region

Which of the following best defines a community?

• A single living organism

• A collection of ecosystems

• Different populations in a specific area

• The entire planet Earth

Which of the following is an abiotic factor?

• Fish

• Insects

• Sunlight

• Bacteria

Which term describes all ecosystems on Earth?

• Community

• Ecosystem

• Biosphere

• Population

What additional elements does an ecosystem include over a community?

• Specific populations

• Only plant species

• Abiotic factors

• Only animal species