The phylum chrordata comprise about how many species?
Correct answer: B. 50,000
- A. 25,000
- B. 50,000
- C. 100,000
- D. 10,00,000Educational Resources
Explanation
Traditional biology texts commonly give approximately 50,000 living species in the phylum Chordata, including tunicates, lancelets and vertebrates. The figure 100,000 may seem reasonable because vertebrates are diverse, but it overestimates the usual textbook count for the whole phylum.
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