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Hace 4 días · The vertebrates are the only chordate group with neural cephalization, and their neural functions are centralized towards a series of vesicular enlargements in the head, which give rise to a brain.
- Animalia
- Vertebrata, J-B. Lamarck, 1801
Hace 2 días · Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata). They comprise approximately 3000 described species found in all marine habitats from shallow water to the deep sea.
Hace 5 días · Dolphin. A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins ), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).
Hace 5 días · cordate leaf: 1 n a heart-shaped leaf Type of: simple leaf a leaf that is not divided into parts
Hace 2 días · The eukaryotes ( / juːˈkærioʊts, - əts / yoo-KARR-ee-ohts, -əts) [5] constitute the domain of Eukarya or Eukaryota, organisms whose cells have a membrane-bound nucleus. All animals, plants, fungi, and many unicellular organisms are eukaryotes.
Hace 5 días · Answer. Verified. 386.4k + views. Hint: Chordata is the most advanced animal phylum that includes about 45,000 living species. They are bilaterally symmetrical, triploblastic animals with organ-system level of organization and metamerism. They also have closed circulation and special respiratory and excretory organs.
Hace 4 días · CHORDATE HALLMARKS 1. Notochord notochord (i) flexible rod-like structure extending through the body (ii) first part of endoskeleton to appear in embryo (iii) axis for muscle attachment - remains throughout life in some less derived chordates - replaced by vertebrae in derived chordates (i.e. most vertebrates) - bends without shortening, therefore permits undulatory body movement (swimming ...
