Exploring Living Things Topic 7 Test

Which of the following is a characteristic of bacteria?

• They have a nucleus

• They are unicellular

• They are always multicellular

• They make their own food using sunlight

What is the main function of homeostasis in living organisms?

• To reproduce

• To maintain a stable internal environment

• To move from place to place

• To obtain energy from the sun

Which group includes both autotrophs and heterotrophs?

• Only plants

• Only animals

• Protists

• Viruses

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What is taxonomy?

• The study of animal behavior

• The process of classifying living things

• The process of photosynthesis

• The study of rocks

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Which of the following best describes a heterotroph?

• An organism that makes its own food

• An organism that eats other organisms for energy

• An organism that lives in water

• An organism that uses sunlight for energy

Which of the following is NOT considered a microorganism?

• Bacteria

• Fungi

• Elephant

• Protist

Which of the following statements about viruses is true?

• Viruses are living organisms

• Viruses can reproduce on their own

• Viruses need a host cell to reproduce

• Viruses are always beneficial

How do protists contribute to ecosystems?

• They only cause diseases

• They are important producers and decomposers

• They are always harmful to other organisms

• They do not interact with other organisms

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Why is classification important in biology?

• It helps scientists organize and understand the diversity of life

• It makes animals look more interesting

• It is only used for naming plants

• It is not important

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Which of the following is an example of convergent evolution?

• Birds and bats both developing wings for flight

• A dog learning a new trick

• A plant growing towards sunlight

• Bacteria reproducing by binary fission

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