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Questions and Answers
What is the major difference between Parazoa and Eumetazoa?
What is the major difference between Parazoa and Eumetazoa?
- Parazoa includes only sponges, while Eumetazoa includes animals with true tissues (correct)
- Parazoa includes animals with bilateral symmetry, while Eumetazoa includes animals with radial symmetry
- Parazoa includes animals with true tissues, while Eumetazoa includes only sponges
- Parazoa includes animals with radial symmetry, while Eumetazoa includes animals with bilateral symmetry
Which group of animals is organized around a central axis and lacks well-developed muscles?
Which group of animals is organized around a central axis and lacks well-developed muscles?
- Radial animals (correct)
- Parazoa
- Bilateral animals
- Eumetazoa
What is the probable ancestral organism of animals according to most zoologists?
What is the probable ancestral organism of animals according to most zoologists?
- Eumetazoa
- Choanoflagellate (correct)
- Bilateral animals
- Porifera
What is the significance of the Parazoa-Eumetazoa split in the animal kingdom?
What is the significance of the Parazoa-Eumetazoa split in the animal kingdom?
Which of the following is a characteristic of radial animals?
Which of the following is a characteristic of radial animals?
What is the basis for constructing phylogenetic trees in zoology?
What is the basis for constructing phylogenetic trees in zoology?
Which fossil site(s) support(s) the evidence of a tremendous radiation of animals at the beginning of the Cambrian period?
Which fossil site(s) support(s) the evidence of a tremendous radiation of animals at the beginning of the Cambrian period?
What were the ecological causes that may have sparked the Cambrian Explosion?
What were the ecological causes that may have sparked the Cambrian Explosion?
What is the significance of the Cambrian Explosion?
What is the significance of the Cambrian Explosion?
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