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Classifying Organisms Quiz

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Questions and Answers

Which of the following characteristics distinguishes plants from animals?

Plants possess a backbone, whereas animals do not.

Plants can create their own sustenance through photosynthesis, while animals cannot. (correct)

Plants are always unicellular, while animals are multicellular.

Plants are exclusively aquatic, while animals inhabit terrestrial environments.

Considering the classification of organisms, which of the following would be the MOST inclusive group?

Multicellular organisms (correct)

Vertebrates

Invertebrates

Animals

If a newly discovered organism is observed to be multicellular and lacks a backbone, how could it be further classified, based on the information provided?

Further classification would require information about its method of obtaining food. (correct)

As a unicellular organism.

It must be a plant.

As a vertebrate animal.

A scientist discovers a new single-celled organism. According to the text, how should this organism be classified?

<p>As a unicellular organism. (D)</p> Signup and view all the answers

An organism is identified as a vertebrate. What characteristic MUST it possess?

<p>A backbone. (B)</p> Signup and view all the answers

Flashcards

Organisms

Living systems made of smaller parts that work together.

Unicellular Organism

An organism made up of only one cell.

Multicellular Organism

An organism composed of many cells working together.

Vertebrates

Animals that have a backbone.

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Invertebrates

Animals that do not have a backbone.

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Study Notes

Classifying Organisms

Organisms are living systems with parts working together
Unicellular organisms are made of one cell. They are very small and need a microscope to see.
Multicellular organisms have more than one cell. Most organisms we see every day are multicellular.
Scientists classify organisms by their characteristics into smaller groups like plants, animals, fungi, protists, and bacteria.

Plants

Plants are multicellular organisms
Examples include trees, grasses, flowers, bushes, vines, mosses, and herbs
Plants can make their own food through photosynthesis.
Water lilies and Elodea are examples of plants that live in water.

Animals

Animals are multicellular organisms
Animals are further divided into vertebrates and invertebrates
Vertebrates have a backbone (examples: moose, salmon, blue jay)
Invertebrates do not have a backbone (examples: spider, shrimp, snail).
There are more types of invertebrates than vertebrates.

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Description

Test your knowledge on the classification of living organisms, including unicellular and multicellular organisms. This quiz will cover groups such as plants, animals, fungi, and more. Understand the key characteristics that differentiate these organisms.