CLASSIFICATION
NINE COMMON ANIMAL PHYLA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sponges lack true tissues.
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Cnidarians have true tissue and radial symmetry.
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Annelids have a true body cavity (coelom) and bilateral symmetry.
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The phylum most closely related to chordates is arthropods.
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Detailed explanation-1: -Answer and Explanation: Chordates are more closely related to echinoderms than to arthropods (answer choice B). Chordates and echinoderms are both deuterostomes, meaning that the pattern of embryonic development in these two animal groups is different than other animal phyla.
Detailed explanation-2: -Echinoderms are the most closely related phylum to the phylum Chordata, which includes many complex organisms such as humans.
Detailed explanation-3: -1. Which among the following is incorrect about chordates? Explanation: In chordates, notochord at some point of their life and may vanish after certain period of time. They have a post anal tail.
Detailed explanation-4: -Annelids and arthropods have long been considered each other’s closest relatives, as evidenced by similarities in their segmented body plans.