OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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they both have an internal skeleton
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both have segmented bodies
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both display cephalization
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both are invertebrates
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Detailed explanation-1: -The phyla Arthropoda, Mollusca, Echinodermata, and Chordata all share the common characteristic of being animals, meaning they belong to the kingdom Animalia. As animals, these phyla all contain organisms that are multicellular and have eukaryotic cells, meaning they have membrane-bound organelles, including a nucleus.
Detailed explanation-2: -3.83). Although they may appear very different, echinoderms all have two major defining characteristics that set them apart from all other animals: a water vascular system and five-sided radial symmetry. The water vascular system is a complex series of canals running through an echinoderm’s body (Fig. 3.84).
Detailed explanation-3: -All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.
Detailed explanation-4: -The structure of arthropods differs from other invertebrates. Arthropods have a hard exoskeleton or shell to protect themselves in addition to jointed limbs that allow for more agile locomotion, other invertebrates don’t have these features.