Concept explainers
To describe: The main clades (classes) of fishes.
Concept introduction: Animal phylogeny is the rapidly changing field for the biologists. Even if, the members of animal kingdom are incredibly diverse there are various animals sharing certain features that differentiate them from other organisms of the kingdom. Chordates are the deuterostomes. They are coelomates with bilaterally symmetrical body structure. Chordates are divided into three clades, namely urochordates, cephalochordates, and vertebrates.
To describe: The main groups of tetrapods.
Concept introduction: Animal phylogeny is the rapidly changing field for the biologists. Even if, the members of animal kingdom are incredibly diverse there are various animals sharing certain features that differentiate them from other organisms of the kingdom. Chordates are the deuterostomes. They are coelomates with bilateral symmetrical body structure. Chordates are divided into three clades, namely urochordates, cephalochordates, and vertebrates.
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Biology (MindTap Course List)
- Explain how bony fishes differ from sharks and rays in the following systems or features: skeleton, scales, buoyancy, respiration, and reproduction.arrow_forwardMake a phylogenetic tree about: Amphioxus; Lamprey; an osteostracan( derived ostracoderm); Reef shark;African lungfish and cichlid ( teleost fish) and label the cladogram with the following clades and characters Clade:Chordata; Vertebrata; Gnathostomata; Chondrichthyes 5. Osteichthyes (bony fishes); Sarcopterygii (lobe-finned fishes) and Actinopterygii (ray-finned fishes) Characters: Notochord; Muscular pharynx; Dermal bone; Pectoral fins • Jaw; Pelvic fins; Endochondral bone; Lobed fins and 7 clusters of Hox genes Amphioxus; Lamprey; an osteostracan( derived ostracoderm); Reef shark;African lungfish and cichlid ( teleost fish) and label the cladogram with the following clades and characters Clade:Chordata; Vertebrata; Gnathostomata; Chondrichthyes 5. Osteichthyes (bony fishes); Sarcopterygii (lobe-finned fishes) and Actinopterygii (ray-finned fishes) Characters: Notochord; Muscular pharynx; Dermal bone; Pectoral fins • Jaw; Pelvic fins; Endochondral bone;…arrow_forwardOnly eight species of lobe-finned fishes are alive today, remnants of a group that flourished in the Devonian period of the Paleozoic era. What morphological characteristics distinguish lobe-finned fishes? What is the literal meaning of Sarcopterygii, the taxon comprising lobe-finned fishes and tetrapods?arrow_forward
- What is the morphological characteristic that evolutionarily approximates the beings of the phylum Annelida to arthropods?arrow_forwardby comparing and contrasting the physical features of a shark, guitar fish and the sting ray, what can you deduce about the evolutionary relationships among the elasmobranchs?arrow_forwardcompare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What features are similar among these groups? What features are different?arrow_forward
- Describe four important characteristics of fishes.arrow_forwardDraw a cladogram for the animals: Amphioxus; Lamprey; an osteostracan( derived ostracoderm); Reef shark;African lungfish and cichlid ( teleost fish) and label the cladogram with the following clades and characters Clade:Chordata; Vertebrata; Gnathostomata; Chondrichthyes 5. Osteichthyes (bony fishes); Sarcopterygii (lobe-finned fishes) and Actinopterygii (ray-finned fishes) Characters: Notochord; Muscular pharynx; Dermal bone; Pectoral fins • Jaw; Pelvic fins; Endochondral bone; Lobed fins and 7 clusters of Hox genesarrow_forwardWhat is meant by homologous structures? What is meant by serial homology, and how do crustaceans show serial homology?arrow_forward
- Which of the following is the correct classification for this chordate animal: This vertebrate starts its life cycle in the water in a form without legs. the adult form is a tetrapod and lives mostly on land. These animals do not have a tail and they are specialized for movement like jumping to capture prey. Question 26 options: a) Birds b) Cephalochordata c) Monotreme d) Class Chondrichthyes e) Urodela / Salamanders f) Anura / Frogs g) Eutharia h) Reptiles (non avian) i) Marsupial j) Superclass Agnatha k) Class Osteichthyesarrow_forwardWhat are two noticeable morphological differences between the sharks and ray-fin fishes? What is the main difference (not noticeable) between the sharks and ray-finned fishesarrow_forwardWhat is/ are the major comparison(s) between the tunicates and bony fish? Are tunicates invertebrates and chordates?arrow_forward
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