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Questions and Answers
What percentage of known animal species are classified as invertebrates?
What percentage of known animal species are classified as invertebrates?
- Over 95% (correct)
- Less than 20%
- Around 60%
- Exactly 50%
Which of the following is a characteristic of invertebrates?
Which of the following is a characteristic of invertebrates?
- They are all microscopic in size
- They have a complex nervous system
- They are all carnivorous
- They lack a backbone (correct)
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Study Notes
Characteristics of Invertebrates
- Approximately 95% of known animal species are classified as invertebrates.
- One characteristic of invertebrates is that they do not have a backbone or vertebral column.
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