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Which of the following is a characteristic of the Phylum Echinodermata? Organisms in the phylum Echinodermata are made of cells, not tissue. Organisms in the phylum Echinodermata exhibit five-part morphological symmetry. Organisms in the phylum Echinodermata are thought to be the first to develop nerves and muscles. Organisms in the phylum Echinodermata exhibit multiple life stages.

Which of the following is a characteristic of the Phylum Echinodermata? Organisms in the phylum Echinodermata are made of cells, not tissue. Organisms in the phylum Echinodermata exhibit five-part morphological symmetry. Organisms in the phylum Echinodermata are thought to be the first to develop nerves and muscles. Organisms in the phylum Echinodermata exhibit multiple life stages.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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### Characteristics of the Phylum Echinodermata **Question:** Which of the following is a characteristic of the Phylum Echinodermata? 1. Organisms in the phylum Echinodermata are made of cells, not tissue. 2. Organisms in the phylum Echinodermata exhibit five-part morphological symmetry. 3. Organisms in the phylum Echinodermata are thought to be the first to develop nerves and muscles. 4. Organisms in the phylum Echinodermata exhibit multiple life stages. **Explanation:** In this question, you are asked to identify a characteristic specific to the Phylum Echinodermata. Organisms in this phylum are known for several distinct features, such as their unique symmetry and developmental stages. - **Option 1** is incorrect because organisms in this phylum are comprised of both cells and tissues. - **Option 2** correctly identifies that organisms in the phylum Echinodermata exhibit five-part, or pentaradial, morphological symmetry. - **Option 3** is incorrect since nerves and muscles evolved before the Echinodermata. - **Option 4** is correct in that these organisms do exhibit multiple life stages, but it is not as specific a feature as five-part symmetry. To learn more about these fascinating organisms, explore their diverse forms and roles in marine ecosystems.
Transcribed Image Text:### Characteristics of the Phylum Echinodermata **Question:** Which of the following is a characteristic of the Phylum Echinodermata? 1. Organisms in the phylum Echinodermata are made of cells, not tissue. 2. Organisms in the phylum Echinodermata exhibit five-part morphological symmetry. 3. Organisms in the phylum Echinodermata are thought to be the first to develop nerves and muscles. 4. Organisms in the phylum Echinodermata exhibit multiple life stages. **Explanation:** In this question, you are asked to identify a characteristic specific to the Phylum Echinodermata. Organisms in this phylum are known for several distinct features, such as their unique symmetry and developmental stages. - **Option 1** is incorrect because organisms in this phylum are comprised of both cells and tissues. - **Option 2** correctly identifies that organisms in the phylum Echinodermata exhibit five-part, or pentaradial, morphological symmetry. - **Option 3** is incorrect since nerves and muscles evolved before the Echinodermata. - **Option 4** is correct in that these organisms do exhibit multiple life stages, but it is not as specific a feature as five-part symmetry. To learn more about these fascinating organisms, explore their diverse forms and roles in marine ecosystems.
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