Conjugation aformation None of the above Al Polyp C) Both A and S. 40 In the fe

Question

Conjugation aformation None of the above Al Polyp C) Both A and S. 40 In the fe eycle of the class hydrosoa wtech is the dominat stage? Ci Scyphazos 42. In which of the following types does animal embrwo develop within the terus and is eaunbed by yolk-sac? A) Oviparous. B) Vviparous C) Ovoviviparous. D) All of the above. E) None of the above 42. What is characteristic of ecdysozoans? A) a pseudocoelom 8) agile, speedy, and powerful locomotion. C) the diploblastic condition. Dj. some kind of exoskeleton, or hard outer covering E) a deuterostome condition.

Explanation / Answer

Ans 40 A

Cnidarian also called coelenterate and mostly marine animals like: the corals, hydras, jellyfish, sea anemones, sea pens, sea whips, and sea fans.This phylum Cnidaria is made up of four classes: Hydrozoa; Scyphozoa; Anthozoa; and Cubozoa. Some hydrozoans have both a medusa stage and a polyp stage in their life cycle but most of the life cycle form as a polyp (Dominant).

Ans 42. The superphylum Ecdysozoa includes phylum Nematoda (roundworms) and phylum Arthropoda are most diverse animal groups. All members of this superphylum contain tough external covering called the cuticle. Ecdysozoa contains characteristics like bilaterally symmetrically, Triploblastic, Protostomes, molt their exoskeletons during growth and pseudocoelomates (lined with mesoderm and endoderm).

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