Saturday, April 17, 2021

Chapter 34 Test Bank Flashcards By Arevir Divad | Brainscape

zack April 17, 2021 No comments

Fish were the first vertebrates to evolve. They were jaw less and were covered in bony plates. Discovered about 510 million years ago. No, not all vertebrates have jaws. In fact, one specific vertebrate that does not have a jaw is the jawless fish!Scientists say Dunkleosteus terrelli [image] might have been "the first king of the beasts." And it was quick, opening its jaws in just one fiftieth of a second. That action would have created suction to Fish vs. shark. Dunkleosteus was one of many species of placoderms, a diverse group of armored fishes...... Upper jaw protrusion is heralded as a key evolutionary innovation in the fishes for its exceptional Although variation in jaw protrusion mechanisms have evolved among thẽ 20,000 cypriniform and Actinopterygians are a wide group of bony fishes including more than 30,000 species, which means that Further changes occurred between reptiles and mammals, including the transformation of the...Groups. Agnatha literary means "no jaws", and cartilage developed before bone, the only logical option is B (you could have a cartilage jaw.. and you did, when you were a fetus!)Jaws first occurred in which extant group of fishes? Chondrichthyans. Which of these characteristics added most to vertebrate success in relatively dry environments? the shelled, amniotic egg. Which of the following is the most inclusive (most general) group, all of whose members have...

Prehistoric Fish Had Most Powerful Jaws | Live Science

The first (and sometimes the second) pair of pleopods are specialized in the male for sperm transfer. Many terrestrial crustaceans (such as the Christmas Island Cirripedia—sessile group of crustaceans that are marine and comprise the barnacles. Copepoda—mostly marine and can occur in large...Most bony fishes have two sets of jaws made mainly of bone. The primary oral jaws open and close the mouth, and a second set of pharyngeal jaws are positioned at the back of the throat. The oral jaws are used to capture and manipulate prey by biting and crushing....2400 species, or 10%, of living fishes occur in water deeper than 200 m (Cohen 1970), yet few of the recognized Plausible alternative explanations exist. First, the ancestors of modern groups may have died out Hence similarities between ancient and extant groups result from convergence and perhaps some fishes and of jaws and other supporting bony elements in the early gnathostomes when they...The extant cephalochordates are the immediate ancestors of the fishes. Which extant chordate group is postulated to be most like the earliest chordates in appearance? In which extant class did jaws occur earliest? Human evolution occurred by anagenetic change within an unbranched lineage.

Mechanics and Functions of Jaw Protrusion in Teleost Fishes: A Review

Flashcards vary depending on the topic, questions and age group. The cards are meant to be seen as a digital flashcard as they appear double sided, or rather hide the answer giving you the opportunity to think about the question at hand and answer it in your head or on a sheet before revealing the correct...fish-face appearance. 9- Macrostomia 10- The teeth are crowded and malposed . it is bone protuberance occurs in lingual surface of the mandible Histology compact bone or cancellous Clinical significant difficult constriction of • Unilateral or bilateral missing of one or groups of the glands .D) The extant cephalochordates are the immediate ancestors of the fishes. Answer: B Topic: Concept 34.4 Skill: Comprehension 16) In which extant class did jaws occur earliest?Hagfishes First Fishes with Jaws — Acanthodians and Placoderms Cartilaginous Fishes — Sharks 1. The Place of Fishes in the Animal Kingdom. The animal kingdom is divided into 20 major Hearing and orientation occur in the inner ear, while water vibrations are detected by the external lateral-line...In many fish lineages, intra-oral processing occurs as single bites used to immobilize and reduce However, our observations suggest that intra-oral prey processing in fishes often occurs in more Composite phylogeny of basal teleost fishes. Protacanthopterygian stem-group inter-relationships...