A student has identified a triploblastic coelomate segmented animal as...
Because in phylum :Arthropoda. sensory organs like antennae, eyes (compound and simple),statocysts(organs of balance/equilibrium) are present.
A student has identified a triploblastic coelomate segmented animal as...
Additional character the student should have verified before identifying the animal as an arthropod is the presence of antennae.
- Presence of wings: The presence of wings is not a definitive characteristic of arthropods. While many arthropods, such as insects, have wings, there are also arthropods that do not have wings, such as spiders and crustaceans. Therefore, the presence of wings alone cannot confirm the identification of the animal as an arthropod.
- Presence of antennae: Arthropods are characterized by the presence of jointed appendages, including antennae. Antennae are sensory organs that play a crucial role in detecting and processing environmental stimuli, such as touch, smell, and taste. They are typically found in all major groups of arthropods, including insects, crustaceans, and arachnids. Therefore, verifying the presence of antennae is an important character to confirm the identification of the animal as an arthropod.
- Type of coelom: The type of coelom, whether it is a true coelom or pseudocoelom, is not a distinguishing characteristic of arthropods. Arthropods have a true coelom, which is a fluid-filled body cavity completely lined with mesodermal tissue. However, there are other animals, such as annelids (segmented worms), that also possess a true coelom. Therefore, the type of coelom alone cannot confirm the identification of the animal as an arthropod.
- Type of symmetry: The presence of bilateral symmetry is a characteristic shared by many animals, including arthropods. However, bilateral symmetry is not exclusive to arthropods, as there are other groups of animals, such as vertebrates and mollusks, that also exhibit bilateral symmetry. Therefore, the type of symmetry alone cannot confirm the identification of the animal as an arthropod.
In conclusion, the presence of antennae is an important character that the student should have verified before identifying the animal as an arthropod. The presence of antennae is a defining characteristic of arthropods and is not found in other groups of animals.
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