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Questions and Answers
Which of the following best describes invertebrates?
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?
How many invertebrate phyla are there?
- 20
- 30 (correct)
- 25
- 40
What is the basis for dividing the invertebrate phyla into major and minor phyla?
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?
Which phylum would be considered a major phylum based on the number of species and individuals?
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Which invertebrate phylum has the largest number of species?
Which invertebrate phylum has the largest number of species?
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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.
