Web17 apr. 2024 · Which of the following characters is absent in all chordates? (2000) (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord. 89. What is ... notochord is present only in larval tail while in Amphioxus (cephalochordata), it extends from head to tail region and is persistent throughout their life. It is replaced by a ... Web15 apr. 2024 · 21 views asked Apr 15, 2024 in Biology by SonamMeena (120k points) in which of the following notochord is absent A. adult herdmania and balanolossus B. adult herdmania and adult branchiotoma C. larva of herdmania and branchiostoma D. larva of hermania and balanoglossus class-11 animal-kingdom Please log in or register to …
Explore the Difference Between Chordates and Non-chordates
WebNon-chordates are animals without a notochord or backbone whereas chordates have the same. Post-anal tail is absent in case of non-chordates whereas the heart is generally … WebThe notochord is a flexible, rod -shaped body found in the embryo of all chordates. It is composed of cells derived from the mesoderm. It represents the primitive axis of the embryo. In some chordates, it persists throughout life as the main axial support of the body (e.g. Amphibians), while in most vertebrates including humans it becomes the vertebral … killian chapel cemetery amite la
Notochord - Wikipedia
Webnotochord and postanal tail b. segmental body wall and tail muscles c. segmented … 03:02 Which one of the following is a matching pair of a body feature and the animal … WebIn lancelets the notochord persists throughout life as the main structural support of the body. In tunicates the notochord is present only in the larval stage, being completely absent in the adult animal. In these invertebrate … Web14 aug. 2024 · (d) Absence of true coelom but the presence of metamerism Answer 11. Cnidaria is characterized by (a) Tissue level of organization (b) Nematoblasts (c) Coelenteron (d) All Answer 12. Notochord occurs throughout life and all through the length of the body in (a) Cephalochordata (b) Hemichordata (c) Urochordata (d) Vertebrata … killian appliance repair