5 Questions
Which of the following best describes invertebrates?
They make up about 97% of the animal kingdom and do not have a backbone
How many invertebrate phyla are there?
30
What is the basis for dividing the invertebrate phyla into major and minor phyla?
Their participation in ecological communities
Which phylum would be considered a major phylum based on the number of species and individuals?
Annelida
Which invertebrate phylum has the largest number of species?
Arthropoda
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.
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.
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