Ciencias Naturales

What is an ecosystem?

• A group of non-living elements in a habitat.

• A collection of living organisms that share a habitat and interact.

• Only the living beings in a specific area.

• Only the physical environment where organisms live.

Which of the following are considered biotic elements of an ecosystem?

• Water, soil, and air

• Climate and humidity

• Birds, insects, and microorganisms

• Mountains and deserts

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Which of the following are considered abiotic elements of an ecosystem?

• Humans and animals

• Plants and fungi

• Water, soil, and climate

• Bacteria and viruses

Which of these is an example of a terrestrial ecosystem?

• Oceans

• Lakes

• Forests

• Coasts

What characterizes mixed ecosystems?

• They are exclusively aquatic environments.

• They are found only in deserts.

• They combine characteristics of both terrestrial and aquatic environments.

• They are the most abundant type of ecosystem on Earth.