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Exploring Ecosystems

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Which of the following best describes an ecosystem?

The same species living together in the same area.
A group of related organisms that share similar characteristics and are capable of reproducing.
Populations of different species living and interacting in the same area.
All the interacting parts of a biological community and its environment. (correct)

What is the main difference between biotic and abiotic components of an ecosystem?

Biotic components are living things, while abiotic components are non-living things. (correct)
Biotic components are plants, while abiotic components are animals.
Biotic components are non-living things, while abiotic components are living things.
Biotic components are animals, while abiotic components are plants.

Which of the following best describes a population?

A group of related organisms that share similar characteristics and are capable of reproducing.
The same species living together in the same area. (correct)
Populations of different species living and interacting in the same area.
All the interacting parts of a biological community and its environment.

What do living things primarily need water for?

Nutrients (C) Signup and view all the answers

Which of the following is NOT a nutrient that living things need?

Carbohydrates (A) Signup and view all the answers

What do living things primarily need energy for?

Movement (C) Signup and view all the answers

Which of the following is true about the relationship between living organisms and their environment?

Living organisms are connected with and dependent on their environment. (D) Signup and view all the answers

Where do living things get energy from?

From chemical reactions (B) Signup and view all the answers

What is symbiosis?

A relationship where two different organisms benefit from each other (B) Signup and view all the answers

Which of the following is an example of mutualism?

Barnacles on whales (C) Signup and view all the answers

What is predation?

When members of one species eat members of another species (A) Signup and view all the answers

What is adaptation?

How organisms respond to their environment (B) Signup and view all the answers

Where do living things get oxygen from?

From the air (A) Signup and view all the answers

What is commensalism?

A relationship where one organism benefits and the other is not affected (A) Signup and view all the answers

Which of the following is an example of parasitism?

Mosquitoes biting humans (B) Signup and view all the answers