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21 Sep 2024, 21:51
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Of the phyla that exhibit cephalization but not a circulatory system, only one exhibits a body cavity.: Yes
Of the phyla without a body cavity, none exhibit any of the three other listed characteristics.: No
The phyla that exhibit segmentation exhibit all of the other characteristics as well.: Yes
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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The table shows the major animal phyla and whether they exhibit certain characteristics.
For each of the following statements, select Yes if the statement is accurate based on the information provided. Otherwise, select No.
| Phylum | Circulatory System | Cephalization | Body Cavity | Segmentation |
|---|---|---|---|---|
| Annelida | yes | yes | yes | yes |
| Arthropoda | yes | yes | yes | yes |
| Chordata | yes | yes | yes | yes |
| Cnidaria | no | no | no | no |
| Echinodermata | no | no | yes | no |
| Mollusca | yes | yes | yes | no |
| Nematoda | no | yes | yes | no |
| Platyhelminthes | no | yes | no | no |
| Porifera | no | no | no | no |
For each of the following statements, select Yes if the statement is accurate based on the information provided. Otherwise, select No.
| Yes | No | |
| Of the phyla that exhibit cephalization but not a circulatory system, only one exhibits a body cavity. | ||
| Of the phyla without a body cavity, none exhibit any of the three other listed characteristics. | ||
| The phyla that exhibit segmentation exhibit all of the other characteristics as well. |
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Official Answer
Of the phyla that exhibit cephalization but not a circulatory system, only one exhibits a body cavity.: Yes
Of the phyla without a body cavity, none exhibit any of the three other listed characteristics.: No
The phyla that exhibit segmentation exhibit all of the other characteristics as well.: Yes
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22 Sep 2024, 12:11
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1. The question asks us to analyze the table and check which statements are true and which aren't.
2. Of the phyla that exhibit cephalization but not a circulatory system, only one exhibits a body cavity. We are looking for a "yes" in cephalization and a "no" in circulatory system. This only exists for Nematoda and Platyhelminthes. Only Nematoda have a body cavity. So, the statement is accurate.
3. Of the phyla without a body cavity, none exhibit any of the three other listed characteristics. Three phyla have no body cavity: Cnidaria, Platyhelminthes, and Porifera. However, Platyhelminthes has cephalization. So, the statement is inaccurate.
4. The phyla that exhibit segmentation exhibit all of the other characteristics as well. Segmentation is shown in Annelida, Arthropoda, and Chordata. All of them have the other characteristics too. So, the statement is accurate.
2. Of the phyla that exhibit cephalization but not a circulatory system, only one exhibits a body cavity. We are looking for a "yes" in cephalization and a "no" in circulatory system. This only exists for Nematoda and Platyhelminthes. Only Nematoda have a body cavity. So, the statement is accurate.
3. Of the phyla without a body cavity, none exhibit any of the three other listed characteristics. Three phyla have no body cavity: Cnidaria, Platyhelminthes, and Porifera. However, Platyhelminthes has cephalization. So, the statement is inaccurate.
4. The phyla that exhibit segmentation exhibit all of the other characteristics as well. Segmentation is shown in Annelida, Arthropoda, and Chordata. All of them have the other characteristics too. So, the statement is accurate.
22 Nov 2025, 04:13
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