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Invertebrates Introduction Quiz

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Questions and Answers

Which of the following best describes invertebrates?

They make up about 97% of the animal kingdom and do not have a backbone (correct)

They make up about 3% of the animal kingdom and have a backbone

They are only remotely related and have common phylogenetic origins

They are characterized by a unity of basic structural patterns

How many invertebrate phyla are there?

30 (correct)

What is the basis for dividing the invertebrate phyla into major and minor phyla?

The size and structural diversity of the phyla

Their anatomical features

Their common phylogenetic origins

Their participation in ecological communities (correct)

Which phylum would be considered a major phylum based on the number of species and individuals?

<p>Annelida</p> Signup and view all the answers

Which invertebrate phylum has the largest number of species?

<p>Arthropoda</p> Signup and view all the answers

Study Notes

Characteristics of Invertebrates

Invertebrates are best described as animals without a backbone or spinal column.

Invertebrate Phyla

There are approximately 30-35 invertebrate phyla.

Classification of Invertebrate Phyla

Invertebrate phyla are divided into major and minor phyla based on the number of species and individuals they comprise.

Major Invertebrate Phyla

ARTHROPODA is considered a major phylum due to its large number of species and individuals.

Invertebrate Phylum with the Largest Number of Species

Arthropoda has the largest number of species among all invertebrate phyla.

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Description

Test your knowledge on the vast and diverse world of invertebrates with this introduction quiz. Learn about the wide range of invertebrate species and their unique characteristics.