Pharynx with gill slits - Study guides, Class notes & Summaries

Notochord - ANSWER A rod of tough, flexible material that runs the length of a creature's body, providing the majority of its support and attachment sites for muscles. Is replaced by the backbone in vertebrates. pharyngeal gill slits - ANSWER Slits open to the outside from the pharynx. Function in filter feeding in invertebrates and are adapted as Eustachian tubes and middle ear bones in higher vertebrates. dorsal nerve cord - ANSWER A single nerve cord found in vertebrates. Invertebrates...

Is energy required to move oxygen and carbon dioxide across membranes? correct answers No, it is done via passive diffusion from high partial pressure to low partial pressure. How do internal and external respiration differ? correct answers Internal: gas exchange between the blood and the tissues External: gas exchange between the environment and the blood What processes constitute respiration? correct answers Delivery of oxygen to tissues and removal of waste products; can be external (...

Bio 242 Exam 3: Chordates Questions with Answers 2024 What are Chordate general characteristics? - ️️ -Eucoelomate Bilateral Symmetry Deuterostomes Chordate functional homologies (4) - ️️ -Notochord Pharyngeal gill slits Dorsal, hollow, single nerve cord Post-anal tail Homology in chordates. A flexible rod running posteriorly from the head to the tail. It acts as an attachment site for muscles and a support structure that can bend. It consists of a large fluid-filled cells enc...

Is energy required to move oxygen and carbon dioxide across membranes? correct answers No, it is done via passive diffusion from high partial pressure to low partial pressure. How do internal and external respiration differ? correct answers Internal: gas exchange between the blood and the tissues External: gas exchange between the environment and the blood What processes constitute respiration? correct answers Delivery of oxygen to tissues and removal of waste products; can be external (...

Biology 104 Final Exam with complete solution Phylum Chordata consists of what group of animals? -Correct Answer-The Chordates What is a notochord? -Correct Answer-A flexible dorsal structure with muscles attached to it It is the first embryonic skeletal part What is the dorsal tubular nerve chord? -Correct Answer-The "spinal chord"; enlarges on the anterior side to form brain The muscular part used for locomotion in aquatic species of chordates -Correct Answer-Post anal tail Des...

Biology 104 Final Exam Questions With Complete Solutions 100% Correct Phylum Chordata consists of what group of animals? The Chordates What is a notochord? A flexible dorsal structure with muscles attached to it It is the first embryonic skeletal part What is the dorsal tubular nerve chord? The "spinal chord"; enlarges on the anterior side to form brain The muscular part used for locomotion in aquatic species of chordates Post anal tail Describe the endostyle Glandular groove in the ...

Hox genes - control the expression of genes that influence animal morphology (sponges are simple animals that do not have Hox genes) acoelmates - triploblastic animals without a coelom, their bodies are solid and have no cavity. Ancestors of animals... - diverged from ancient fungi, between 675 million and 800 million years ago, believed to be a suspension feeder similar to Choanoflagellates Animals are.. - -multicellular (without cell walls) -heterotropic -develop from embryonic layers ...

What do organisms in the phylum Chordata vary from? correct answers From small worm like animals to humans. All members of the phylum Chordata have what characteristics in common? correct answers A notochord(flexible supporting rod), a dorsal, hollow nerve cord, pharyngeal gill slits, and a post-anal tail. How how are these characteristics presented? correct answers These characteristics may not be obvious, or they may even be absent in some stages of the life history, but all are present ...

Biology 104 Final Exam Questions and Answers 100% Correct | Graded A+ Phylum Chordata consists of what group of animals? - The Chordates What is a notochord? - A flexible dorsal structure with muscles attached to it It is the first embryonic skeletal part What is the dorsal tubular nerve chord? - The "spinal chord"; enlarges on the anterior side to form brain The muscular part used for locomotion in aquatic species of chordates - Post anal tail Describe the endostyle - Glandular groo...

5 chordate characteristics correct answers 1. Notochord (replaced by vertebral column in vertebrates) 2. Dorsal (hollow) nerve cord 3. Pharyngeal slits 4. Post-anal tail 5. Endostyle Notochord correct answers sits below the dorsal hollow nerve cord, can bend side to side but cannot be compressed, helps with movement (especially swimming) Pharyngeal slits correct answers A gill structure in the pharynx that allows for filtration of water and food from the environment Endostyle correc...