a new species of aquatic chordate is discovered

Test 3 Flashcards by Kayley Carsey | Brainscape B) All deuterostomes have a similar pattern of early embryonic development. D) 3, 4, 5, 1, 2, Suppose, while out camping in a forest, you found a chordate with a long, slender, limbless body slithering across the ground near your tent. Chordata: Definition, Characteristic, and Examples - ResearchTweet You can get your paper edited to read like this. C) defense The poison is ingested and causes paralysis by detaching segmental muscles from the skeletal elements. If the teacher wanted to show the students what a lophophore is and how it works, the teacher would point out a feeding _____. In addition to these, it will probably have which of the following characteristics? Fishes that have swim bladders can regulate their density and, thus, their buoyancy. To reproduce, many plants produce seeds-structures containing embryonic offspring along with nutrients inside a tough case. C) an amniotic egg Diffusion Let us complete them for you. Also, the feeding mechanism is suspension-feeding which refers to the intake of food materials present in the water. These results suggest instead that _____. C) opposable big toe It two round smoos mate, the. earliest chordates in appearance? have evolved feathers. might be a marine leech, a hagfish, or a lamprey. Some fungal species can kill herbivores while feeding off of sugars from its plant host. Cephalochordates and vertebrates have a hollow, dorsal nerve cord, pharyngeal gill slits, and a notochord. A nematoda 95 a terrestrial animal species is - Course Hero You also noticed that only males had feathers. Chordates- Chapter 34 Flashcards - Easy Notecards What adaptations do animals that live in the Atlantic or deep-sea have? In addition to these, it will probably have which of the following characteristics? In what respect do hominins differ from all other anthropoids? these bones can be observed to move from the evolving jaw to the evolving middle ear in mammalian embryos. A new species of aquatic chordate is discovered that closely resembles You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. c. a hydrostatic skeleton. Most cnidarians are known to produce toxins. A) It increased the surface area for respiration and feeding. B) the yolk sac movement of the eyes to the front of the head. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. |Character|Lancelet (Out-group}|Lamprey|Goldfish|Salamander|Turtle|Leopard|Chimp. What would change in the development of protostom evolution if each body plan has a homogeneous character? ectotherms, able to run quickly but unable to fly. Researchers studying this gene have found that it is also expressed in developing appendages in animals from many other phyla, supporting the hypothesis that all animal appendages may be homologous. All deuterostomes exhibit radial symmetry in their bodies. An organism that exhibits cephalization probably also______. If two cuboidal smoos mate, they always have cuboidal shape offspring. What group of cartilaginous fish includes skates and sawfish? What is the major feature in these fish in support of this hypothesis? It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension -feeding mode of nutrition. Fossil fungi date back to the origin and early evolution of plants. A) a mineralized, bony skeleton They had watched it carefully, and the unfortunate creature never even got to produce offspring by budding. Which Experts are tested by Chegg as specialists in their subject area. In what ways do seafloor abyssal marine organisms get their food? Chapter 34 Quiz Flashcards | Quizlet In a tide pool, a student encounters an organism with a hard outer covering that contains much calcium carbonate, an open circulatory system, and gills. A) All deuterostomes exhibit radial symmetry in their bodies. Explanation: Ostrachodermi is an extinct class of agnate fishes, considered as the most ancient vertebrate. What type of relationship does this fungus have with its host? -catenin turns out to be essential for gastrulation in all animals in which it occurs. C) viviparous reproduction. least inclusive (most specific).1. lobe-fins2. These are the manta and devil rays two manta species and seven devil ray species. It is believed that the coelacanths and lungfish represent a crucial link between other fishes and tetrapods. B) 3, 2, 4, 5, 1 If the size difference between the lungs in this organism is not a shared ancestral characteristic with its occurrence in snakes, then its existence in this organism is explained as which of the following? The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. 3. a similar adaptation to a shared lifestyle or body plan B) use its lateral line system aid in swimming; adults are sessile and thus no longer propel themselves. C) Use molecular analysis to look for the protein keratin. A new species of aquatic chordate is discovered that closely resembles an ancient form. Arthropod exoskeletons and mollusk shells both _____. Which of the following represents the strongest evidence that two of the three middle ear bones of mammals are homologous to certain reptilian jawbones? 35) When a shark stops swimming, it _____. Based on these characteristics, it is likely that this species will also have no jaws, as ancient aquatic chordates, such as the jawless fish known as Agnathans, lacked jaws and had similar features. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. In a tabular form, compare the anatomical features of vertebrates. The nematocysts most likely reach the skin of sea slugs through branches of the _____. What is the advantage of this to an organism that gets most of its nutrition through absorption? It has All of the following are characteristics of chordates EXCEPT: a. a notochord b. an exoskeleton c. a nerve chord d. gill slits, Swim bladders ______. Orchid seeds are tiny, with virtually no endosperm and with miniscule cotyledons. On the back of your skull you can feel a small bump, below which is an opening where the spinal cord enters the skull. If a tunicates pharyngeal gill slits were suddenly blocked, the animal would have trouble _____. The 1-meter-long organism has smooth skin, which appears to be segmented. type of body cavity (coelom vs. pseudocoelom vs. no coelom). A) A large brain is not necessarily required for toolmaking. The diagnostic feature of Chondrichthyes is _____. You also noticed vertebrate diversification? A) chondrichthyans, osteichthyans, and reptiles, E) chondrichthyans, osteichthyans, and mammals. 1. apes Assume that all of the following are the same total length. The one-way flow of air along parabronchi makes what type of gas exchange mechanism possible, at least theoretically? A) aid in swimming; adults are sessile and thus no longer propel themselves. D) organize their nervous systems; adults nervous systems are fully developed and do not change. Listed below are four adaptations of terrestrial vertebrates. B) They are similar in shape to the reptilian jawbones. These offspring develop after being released by the parent plant. No jaws. There are three major groups of mammals, categorized on the basis of The fish fills this version by swimming to the surface, taking gulps of air, and directing them into the swim bladder. remove small bites of flesh from sea slugs and have long-term memory. You take the animal to a university where a myriapodologist quickly tells you that you have found a centipede. Which of the following is (are) unique to animals?A) the structural carbohydrate, chitinB) nervous system signal conduction and muscular movementC) heterotrophyD) flagellated gametes. If a tunicate's pharyngeal gill slits were suddenly blocked, the C) 9 Otx genes Female birds lay their eggs, thereby facilitating flight by reducing weight. Which of the following characteristics would support your hypothesis that the animal is a sea star and not another type of echinoderm? Which Terry thinks it might be a marine leech, a hagfish, or a lamprey. Which of these would a paleontologist most likely do to determine if a fossil represents a reptile or a mammal? In addition to these, it will probably have which of the following characteristics? created 5 years ago by rileyrenner 2,080 views List View Show: All Cards 75 1 1) Which of the following is a characteristic of all chordates at some point during their life cycle? A) show evidence of internal fertilization Kris brings it back to the lab at the field station, where it is a source of puzzlement to the class. The microsporidian Brachiola gambiae parasitizes the mosquito Anopheles gambiae. 29.1 Chordates - Biology 2e | OpenStax D) diurnal activity, What group of mammals have (a) embryos that spend more time feeding through the placenta than the mothers nipples, (b) young that feed on milk, and (c) a prolonged period of maternal care after leaving the placenta? Do members of the phylum Arthropoda molt the external cuticle? Which of these characteristics added most to vertebrate success in relatively dry environments? C) Skates and rays exchange gases across their skin and thus require a high surface-area-to- volume ratio, while sharks use gills to respire. B) 4, 3, 2, 5, 1 D) an endoskeleton of calcified cartilage, Arrange these taxonomic terms from most inclusive (most general) to D) tuataras, During chordate evolution, what is the sequence (from earliest to most recent) in which the following structures arose? The foramen magnum is towards the back. Which structure is not an innovation that occurred during A team of researchers has developed a poison that has proven effective against lamprey larvae in freshwater cultures. C) induce tissue differentiation; in adults, tissue is already differentiated. These hominins were small (approximately 1 meter tall) with small braincases (approximately 380 cubic centimeters) as compared with other hominins. Kindly login to access the content at no cost. 1 Which of the following is NOT a diagnostic feature of the Chordata? Which structure of the amniotic egg most closely surrounds the embryo? How could you directly test this hypothesis? What feeding tactic do these animals use? A) oviparous reproduction From earliest to most recent, in what sequence did these events evolve? An organism that is radially symmetric has many C) The development of an amniotic egg and internal fertilization It is speculated that H. floresiensis and H. sapiens may have lived on Flores concurrently. Which characteristic distinguishes echinoderms from the other two 39) Which type of bird is most likely to benefit from air sacs which reduce its weight? B) the ability to maintain a constant body temperature A new species of aquatic chordate is discovered that closely resembles an ancient form. If the pond organisms are larvae, rather than adults, Sarah should expect them to have all of the following structures, EXCEPT _____. D) the amnion, The evolution of similar insulating skin coverings such as fur, hair, and feathers in mammals and birds is a result of _____. Let us have a look at your work and suggest how to improve it! The subsequent decline in anopheline mosquitoes should not significantly disrupt human food resources or other food webs. Which strategy seems most likely for female bats to use to achieve the same goal? C) presence of a nerve cord C) lay eggs Answer: The correct answer is B. The functional significance of porous septa in certain fungal hyphae is most similar to that represented by which pair of structures in animal cells and plant cells, respectively? B) eyes on the front of the face Larvae use notochords to______. D) Lancelets and lamprey larvae eat different kinds of food. The evolution of similar insulating skin coverings such as fur, hair, and feathers in mammals and birds is a result of _____. Arrange the following in order from largest to smallest. osteichthyans5. A) They are similar in size to the reptilian jawbones. reported in 2004 that they had found skeletal remains of a previously unknown type of hominin, now dubbed Homo floresiensis, on the Indonesian island of Flores. Whiteflies are common pest insects found on cotton, tomato, poinsettia, and many other plants. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. C) an . A) Look for the presence of milk-producing glands. They were little filtering organisms, with no mandible or jaws, and no paired fins. D) the same as that occurring in echinoderm skin gills, Which of these characteristics added most to vertebrate success in relatively dry environments? With which of the following statements would a biologist be most inclined to agree?A) Humans and other apes represent divergent lines of evolution from a common ancestor.B) Humans represent the pinnacle of evolution and have escaped from being affected by natural selection.C) Humans evolved from chimpanzees.D) Humans and other apes are the result of disruptive selection in a species of chimpanzee. In terms of food capture, which sponge cell is most similar to the cnidocyte of a cnidarian? D) 5, 2, 1, 4, 3, Which of these traits is most strongly associated with the adoption of bipedalism? Question 36 1 pts You worked super hard in your biology classes and were rewarded with a research grant to look for fossils of the ancestors of the earliest tetrapods. reported in 2004 that they had found Which extant chordates are postulated to be most like the earliest A) 2, 3, 4, 1, 5 D) not sink, Which shark structure is closest in function to a swim bladder full of gas? probably have which of the following characteristics? A) The development of more efficient surfaces for gas exchange in The class decided to humanely euthanize the organism and subsequently dissect it. The most important concern of grape farmers who engage in this practice should be that the _____. A) a rasping tongue What does this finding suggest? much larger than itself. A) enhanced depth perception The What should be true of fossils of the earliest tetrapods? A) lampreys Deuterostomes invade terrestrial environments. gnathostomes4. the anterior pharyngeal gill slits. In addition to these, it will probably have which of the following characteristics? 38) Terry takes the body of the snakelike organism and slices it open along its dorsal side. hominin species H. floresiensiswas most closely related? B) ovoviviparous reproduction Which of the following best describes the physical relationship of the partners involved in lichens? Which of the following characteristics evolved independently in mammals and birds? attached organism has no external segmentation, no scales, a round chondrichthyans that lived at the same time. Which of the following is consistent with this finding? The presence of a swim bladder allows the typical ray-finned fish to stop swimming and still _____. A new species of aquatic chordate is discovered that closely D) opposable thumbs. See whether the embryo _____. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. How are bony fish different from cartilaginous fish? The ancestral version is the physostomous version, in which the swim bladder is connected to the esophagus via a short tube (see the figure above). B) Marsupiala Echiinodermata Bilateral symmetry as a larva, water vascular system. This most clearly implies that _____. If the inner lining of the air sacs is neither thin nor highly vascularized, then what can be inferred about the air sacs? none of your bis 34 Flashcards - Easy Notecards A) Humans and other apes represent divergent lines of evolution from a common ancestor. C) amniotic egg D) 3 and 4, Which of the following could be considered the most recent common ancestor of living tetrapods? Which of the following can be found in the mesohyl of a sponge? Yet, everyone was elated when one of the students noticed a small colonial hydrozoan growing in a part of the tank far from the location of the original colony. directly from dinosaurs? The sharp, inch-long thorns of the crown-of-thorns sea star are its spines. Chapter 34: Chordates Flashcards - Easy Notecards Sponges are most accurately described as a marine - Course Hero There are no fossil records to show the ancestors of vertebrates. D) A swim bladder helps control buoyancy. its central region is not well-delineated from its appendages. 31) A new species of aquatic chordate is discovered that closely resembles an ancient form. What do you call the bony plates that cover the body of a fish? the body cavity evolved before the lophophore. Which of the following are the only extant animals that descended was able both to make tools and to coordinate the hunting of animals A) Sharks are more closely related to the tubelike lampreys than skates and rays are. Consequently, which two organisms would have been among the first to starve to death (assuming they lack photosynthetic endosymbionts)? D) the amniotic egg, Fossils of the earliest tetrapods should _____. The student rears some of the eggs in the laboratory for further study and finds that the blastopore becomes the mouth. that only males had feathers. A) Cephalochordata B) adult Urochordata C) Amphibia D) Reptilia E) Chondrichthyes Answer: A Topic: Concept 34.1 Skill: Knowledge 7) Which are extinct organisms that may represent a transition between cephalochordates and vertebrates? If true, this would mean that _____. Which of the following is the most inclusive (most general) group in which all of the members have fully opposable thumbs? A) skin CH 34 Flashcards - Easy Notecards Suppose researchers obtained mitochondrial DNA samples from the H. floresiensis remains, amplified a 1000-base-pair sequence via PCR, and compared it to that of several currently living H. sapiens native to Indonesia, North Africa, and North America. To reproduce, many plants produce seedsstructures containing embryonic offspring along with nutrients inside a tough case. It cannot be cartilaginous fish because they have placoid scales which are hard, enamel-. Which would be the most feasible method of figuring out to which other hominin species H. floresiensis was most closely related? A new species of aquatic chordate is discovered that resembles an ancient form. The physoclistous version is more derived, and has lost its connection to the esophagus. Which of the following is NOT a diagnostic feature of the Chordata? C) The extant lancelets are the immediate ancestors of the fishes. Ch34 Flashcards | Quizlet vertebrates to reproduce away from water. Suppose you traveled back in time and located the first animals to Which hypothesis of feather evolution this fungal group can break down the tough lignin, which cannot be harnessed for energy, to get to the more useful cellulose. 40) Which of the following could be considered the most recent common ancestor of living tetrapods? You find a multi-legged animal in your garden and want to determine if it is a centipede or a millipede. You have before you a living organism, which you examine carefully. D) sites of respiration. Which of the following traits shared by mammals and birds best explains this habit? These eggs probably belonged to a(n) _____. C) All deuterostomes are triploblastic and have three tissue layers. A) jaws B) post-anal tail C) four-chambered heart D) vertebrae b 2 2) Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? the radial symmetry of extant cnidarians is secondarily derived, rather than being an ancestral trait. results in heterokaryotic or dikaryotic cells. Due to its system of air sacs connected to the lungs, the respiratory system of birds is arguably the most effective respiratory system of all air-breathers. Which of the following is most likely to be aquatic? C) ectothermy Our experts can answer your tough homework and study questions. Terry catches a ray-finned fish from the ocean and notices that 3. jaws Which of the following traits shared by mammals and birds best explains this habit? D) This change was necessary for the increase in size from prosimian forms to anthropoid forms. All rights reserved. A new species of aquatic chordate is discovered that closely resembles an ancient form. For which of the following hypotheses is the procedure described a potential test? A trend first observed in the evolution of the earliest tetrapods was _____. years ago to 18,000 years ago. B) teeth other hominins. In arthropods, locomotion is accomplished by muscles that work against: a. each other. What feature of this group most likely evolved simultaneously with the evolution of these toxins? A) Tetrapods were no longer tied to the water for reproduction. A) lizards chordates in appearance? D) It increased the surface area for respiration and feeding. associated with a wet or moist environment? In addition to these, it will probably have which of the following characteristics? It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. They should indicate limited adaptation to life on land. What are the main characteristics of cartilaginous fish? Among protostomes, which morphological trait has shown the most variation? If a lung were to be found in a mollusc, where would it be located? A trend first observed in the evolution of the earliest tetrapods was _____. What anatomical change made depth perception possible? B) Human ancestors were virtually identical to extant chimpanzees. tubular reabsorption moves substances ______ the blood. The team wants to test the poisons effectiveness in streams feeding Lake Michigan, but one critic worries about potential effects on lancelets, which are similar to lampreys in many ways. This E-mail is already registered with us. Which of the D) Lancelets display the same method of swimming as do fishes. by modification of the skeletal rods that previously supported the deuterostome lineages? C) bones are the group of fungi that have, at present, no known sexual stage. What do fungi and arthropods have in common? Solved Question 28 1 pts A new species of aquatic chordate - Chegg sharks are streamlined for active swimming off the bottom, while skates move about mostly on the ocean bed. and Morwood et al. D) evolutionary divergence, Which of the following characteristics evolved independently in mammals and birds? C) four-chambered heart Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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