A) the shelled, amniotic egg D) Tetrapods were no longer tied to the water for reproduction. Which structure is not an innovation that occurred during Protostomes invade terrestrial environments. But, humans are the ultimate apex predator. Most extant cnidarians have two Hox genes, except Nematostella (of -catenin fame), which has three Hox genes. the hypothesis that Jl cells infect and kill Bd cells when both are present together on frog skin. Unlike eutherians, both monotremes and marsupials _____. Arthropods invaded land about 100 million years before vertebrates did so. Feathers initially evolved in a role associated with _____. D) All vertebrates have jaws with which to catch their prey. Whiteflies are common pest insects found on cotton, tomato, poinsettia, and many other plants. Chordate pharyngeal slits appear to have functioned first as. D) terrestrial, Which characteristic is common to all the modern representatives of all major reptilian lineages (turtles, lepidosaurs, crocodilians, and birds)? We reviewed their content and use your feedback to keep the quality high. Against which hard structure do the circular and longitudinal muscles of annelids work? Which structure of the amniotic egg most closely surrounds the embryo? lichens are not purely mutualistic relationships. In addition to these, it will probably have which of the following characteristics? An organism that is radially symmetric has many well-developed head regions.TrueFalse. A) a rasping tongue What should be true of fossils of the earliest tetrapods? The attached organism has no external segmentation, no scales, a round mouth surrounded by a sucker, and two small eyes. C) opposable big toe It is speculated that H. floresiensis and H. sapiens may have lived on Flores concurrently. What is believed to be the most significant result of the evolution C) indicate limited adaptation to life on land This E-mail is already registered with us. B) teeth What are the main characteristics of cartilaginous fish? their _____. The student rears some of the eggs in the laboratory for further study and finds that the blastopore becomes the mouth. osteichthyans5. Comb jellies may not be the most familiar animal to you, but they are critical in the food chain because they make up a significant portion of the planktonic biomass. Which of the following is the process of getting oxygen from the environment to the tissues of the body? B) Skates and rays need enlarged pectoral fins to help them stay level in turbulent water, while sharks do not. 4 anthropoids What kind of fertilization do cartilaginous fish conduct? To which phylum does the heartworm belong? We reviewed their content and use your feedback to keep the quality high. Get access to this video and our entire Q&A library. Suppose you traveled back in time and located the first animals to Why is this concern misplaced? It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. Why might researchers choose to use molecular data (such as ribosomal RNA sequences) rather than morphological data to study the evolutionary history of animals? Often the large predators at the top of the food web in a particular ecosystem. You found that these animals were tree-dwelling What group of cartilaginous fish includes skates and sawfish? Which of the following statements about human evolution is correct?A) Modern humans are the only human species to have evolved on Earth.B) Human ancestors were virtually identical to extant chimpanzees.C) Human evolution has occurred within an unbranched lineage.D) The upright posture and enlarged brain of humans evolved separately. gnathostomes4. BIO 112 Final Exam MC Practice Test - Studocu Jaws first occurred in which extant group of fishes? which of the following animal groups is entirely aquatic? A new species of aquatic chordate is discovered that closely resembles What kind of scales do cartilaginous fish have? How do members of the phylum Chordata eat. Are cartilaginous fish generally freshwater species? D) Lancelets and lamprey larvae eat different kinds of food. C) amphibians What adaptations do animals that live in the Atlantic or deep-sea have? You have before you a living organism, which you examine carefully. B) use its lateral line system Animals are more closely related to plants than to fungi. Study Chapter 34 Biology 1407 Flashcards | Quizlet With which of the following statements would a biologist be most inclined to agree? CH 34 Flashcards - Easy Notecards Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships? The adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to _____. B) shortened hind limbs D) Compare the estimated life span of H. floresiensis to that of each of the other hominin species. An operculum covers which body part of a bony fish? C) gill slits for respiration. A trend first observed in the evolution of the earliest tetrapods was _____. 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. D) These bones can be observed to move from the evolving jaw to the evolving middle ear in mammalian embryos. B) Newborns are much less dependent on their parents. What does this suggest? Jaws first occurred in which extant group of fishes? C) induce tissue differentiation; in adults, tissue is already differentiated. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. A billionaire buys a sterile volcanic island that recently emerged from the sea. The endostyle is embedded in the floor of the pharynx. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. C) Monotremata. These eggs probably belonged to a(n) _____. What is believed to be the most significant result of the evolution of the amniotic egg? What combination of environmental and morphological change is similar in the evolution of both fungi and plants? Ostrachodermi is an extinct class of agnate fishes, considered as the most ancient vertebrate. D) the same as that occurring in echinoderm skin gills, Which of these characteristics added most to vertebrate success in relatively dry environments? Which of the following would be a likely mechanism by which this pesticide works? It has the following characteristics: It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. Their feeding strategy is predatory and involves adhesives or mucus on their tentacles or other body parts. Suppose you traveled back in time and located the first animals to have evolved feathers. Homo D) not sink, Which shark structure is closest in function to a swim bladder full of gas? A new species of aquatic chordate is discovered that closely resembles an ancient form. Fishes that have swim bladders can regulate their density and, thus, their buoyancy. Chordata Definition a phylum of the animal world that includes all creatures with a notochord (a hollow dorsal nerve cord), pharyngeal slits, and a muscular tail reaching past the anus at some point in their lives. years ago to 18,000 years ago. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. What do fungi and arthropods have in common? If the triton uses a radula to saw into the sea star, then to which clade should the triton belong? As you are walking along a beach, you find an animal and believe that it belongs to the class Asteroidea. B) post-anal tail A) legs B) no jaws C) an amniotic egg division of these two groups occurred after the protostome developmental sequence appeared. What is the difference between bony and cartilaginous fish? Which extant chordates are postulated to be most like the earliest chordates in appearance? No jaws. D) A swim bladder helps control buoyancy. a) flatworms b) sponges c) roundworms d) mollusks. This E-mail is already registered as a Premium Member with us. Which structure can be used for feeding and gas exchange? the extant lancelets are the immediate ancestors of the fish. What do all craniates have that earlier chordates did not have? 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? These are called apex predators. What is believed to be the most significant result of the evolution A) the same as that occurring in fish gills The correct answer is B. host symbionts with colorful photosynthetic pigments. earliest chordates in appearance? Some fungal species can kill herbivores while feeding off of sugars from its plant host. A) amphibians confirm the identity of sponges as basal animals. 3. gnathostomes Which of the following is a feature of the tube-within-a-tube body plan in most animal phyla? Some that come to mind are obvious wolves in Yellowstone, lions on the Serengeti and orcas in the Pacific Northwest. How are bony fish and cartilaginous fish similar? associated with a wet or moist environment? Which What distinctive adaptations appeared in early Mollusca? earliest chordates in appearance? A new species of aquatic chordate is discovered that closely resembles an ancient form. Which characteristic distinguishes echinoderms from the other two To reproduce, many plants produce seeds-structures containing embryonic offspring along with nutrients inside a tough case. Is a fish skeleton a trace or body fossil? What kind of bone do members of the phylum Chordata have? A knowledgeable zoologist should predict that the adults of this species would also feature _____. B) show evidence of having produced shelled eggs Chordates are animals of the Chordata phylum that share similar characteristics. D) The upright posture and enlarged brain of humans evolved separately. Microsporidians should infect mosquito larvae, rather than mosquito adults. Test 3 Flashcards by Kayley Carsey | Brainscape Both animals and fungi are heterotrophic. B) All deuterostomes have a similar pattern of early embryonic development. e. the pseudocoelom. What would you surmise from these data? What are some characteristics of cartilaginous fish? You found that these animals were tree-dwelling What was the dominant vertebrate life form during Paleozoic era? Explanation: Ostrachodermi is an extinct class of agnate fishes, considered as the most ancient vertebrate. Question 29 1 pts What was most likely the original function of the pharyngeal slits in the earliest chordates? What is the advantage of this to an organism that gets most of its nutrition through absorption? It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. Refer to the paragraph on Brown et al. the mouth and anus form the ends of the inner tube. C) All deuterostomes are triploblastic and have three tissue layers. Our experts can answer your tough homework and study questions. How do fish fit into the chordate cladogram? Which hypothesis of feather evolution A trend first observed in the evolution of the earliest tetrapods was _____. Which of the following is a characteristic of all chordates at some vertebrate diversification? animals studied thus far. chapter 34 Flashcards | Quizlet D) 3 and 4, Which of the following could be considered the most recent common ancestor of living tetrapods? B) It was the first stage in the development of a bony skull. What part of the phylum Chordata do great white sharks belong to? Arthropod exoskeletons and mollusk shells both _____. Arrange these groups in order from most inclusive (most general) to least inclusive (most specific). The location of this opening toward the bottom of the skull is significant in evolutionary biology for what reason? return to water at any stage of the life cycle? and Morwood et al. Homo floresiensis, on the Indonesian island of Flores. B) They are highly maneuverable due to their flexibility. 5. four-chambered heart A) They are similar in size to the reptilian jawbones. Brown et al. What is the single unique characteristic that distinguishes extant To which of the following group does the fungus belong? Thus, there is one-way flow of air through the lungs, along thousands of tubules called parabronchi. In addition to these, it will probably have which of the following characteristics? D) Embryos are protected from predators. Which extant chordates are postulated to be most like the D) They cannot effectively moisturize the air before it reaches the lungs. Terry thinks it D) vertebrae. Larvae use notochords to______. A) Eutheria Evolution and paleontology. Experts are tested by Chegg as specialists in their subject area. If a lung were to be found in a mollusc, where would it be located? Anthozoan corals are characterized by all of the following except: A. some may have hard calcium carbonate exoskeletons. 40) Which of the following could be considered the most recent common ancestor of living tetrapods? sequence data can be gathered faster than morphological data, and morphological data provides a different perspective. C) give birth to underdeveloped young, and subsequently carry them in a pouch that has teats A new species of aquatic chordate is discovered that closely To prefer the first hypothesis on the basis of parsimony requires the assumption that _____. of the amniotic egg? A team of researchers has developed a poison that has proven effective against lamprey larvae in freshwater cultures. The last common ancestor of all animals was probably a _____. E) cartilaginous pipe surrounding notochord. stop swimming and still _____. Which of the following statements about human evolution is correct? Browse over 1 million classes created by top students, professors, publishers, and experts. A) lizards Unlike eutherians, both monotremes and marsupials _____. A) The development of an anus from the blastopore, B) The presence of four specific morphological traits, C) The presence of a well-developed circulatory system. Chordates: The Voyage to Us Bones, Brawn, and Brains, Gail Grabowsky Kaaialii, Marine Biologist. birds from other extant vertebrates? What do all craniates have that earlier chordates did not have? Click the card to flip no jaws What was an early selective advantage of a coelom in animals? If the pond organisms are larvae, rather than adults, Sarah should expect them to have all of the following structures, EXCEPT _____. It cannot be cartilaginous fish because they have placoid scales which are hard, enamel-. directly from dinosaurs? Refer to the paragraph on Brown et al. Are zebra fish bony or cartilaginous fish? You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. Brachiola should kill the mosquitoes before the malarial parasite they carry reaches maturity. return to water at any stage of the life cycle? The organism could potentially be a crab, a shrimp, a barnacle, or a bivalve. In most fungi, karyogamy does not immediately follow plasmogamy, which consequently______. Listed below are four adaptations of terrestrial vertebrates. A) the chorion D Question 37 1 pts What evidence points to the idea that an asteroid hit the Earth and caused a mass extinction which created many new niches for the radiation of mammalian species? 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. The insect would have trouble _____. 4. osteichthyans A new species of aquatic chordate is discovered that closely In addition to these, it will probably have which of the following characteristics? The poison is ingested and causes paralysis by detaching segmental muscles from the skeletal elements. A new species of aquatic chordate is discovered that closely resembles an ancient form. A) a sturdy-finned, shallow-water lobe-fin whose appendages had skeletal supports similar to those of terrestrial vertebrates Is the phylum Chordata under the class Agnatha? B) presence of four walking limbs Healthy corals are brightly colored because they____. What is the possible appearance or hypothetical appearance of the vertebrate's ancestor? The last common ancestor of all bilaterians is thought to have had four Hox genes. Kris brings it back to the lab at the field station, where it is a source of puzzlement to the class. following traits shared by mammals and birds best explains this habit? Do members of the phylum Chordata have embryonic pharyngeal gill pouches? Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Which is the oldest fossil: mammal, fish, reptile or amphibian? These results suggest instead that _____. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. How did the evolution of the jaw contribute to diversification of external armor of bony plates, no paired lateral fins, and a The evolution of animal species has been prolific (the estimates go into the millions and tens of millions). Terry catches a ray-finned fish from the ocean and notices that 2003-2023 Chegg Inc. All rights reserved. ScholarOn, 10685-B Hazelhurst Dr. # 25977, Houston, TX 77043,USA. Which extant chordates are postulated to be most like the earliest 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? Cnidarians have fewer Hox genes than bilaterians. In arthropods, locomotion is accomplished by muscles that work against: a. each other. D) Lancelets display the same method of swimming as do fishes. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. You also noticed C) moving The Iridium, which is common in meteorites but rare on Earth, is found in sedimentary rock that contains the last appearance of many species in the fossil record. C) 2 and 3 It is believed that the coelacanths and lungfish represent a crucial link between other fishes and tetrapods. Which of these would a paleontologist most likely do to determine if a fossil represents a reptile or a mammal? C) anthropoids Is a moray eel a part of the phylum Chordata? D) the amnion, The evolution of similar insulating skin coverings such as fur, hair, and feathers in mammals and birds is a result of _____. What type of feeders are members of the phylum Platyhelminthes? C) defense If two cuboidal smoos mate, they always have cuboidal shape offspring. skeletal remains of a previously unknown type of hominin, now dubbed B) feet with digits When assessing a client with partial-thickness burns over 60% of the body, which finding should the nurse report immediately? Based on your understanding of animal diversity, reproduce the following characteristics table and complete it by allocating derived characteristics to the following animals. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. that only males had feathers. 31) A new species of aquatic chordate is discovered that closely resembles an ancient form. Diffusion Let us complete them for you. Feathers initially evolved in a role associated with _____. C) four-chambered heart Answer: B 10) A new species of aquatic chordate is discovered that closely resembles an ancient form. 37) Which feature excludes the organism from possibly being a leech? In addition to these, it will probably have which of the following characteristics?A) legsB) no jawsC) an amniotic eggD) endothermy. The spiracles and tracheae of insects have a function most similar to that of _____. Which of the following best describes the physical relationship of the partners involved in lichens? Answer: B 2 2) Which of the following statements would be least acceptable to most zoologists? In addition to these, it will probably have which of the following characteristics? B) paired fins You identify it as a(n): O a cartilaginous fish O a bony fish O a snake a jawless fish A) Tetrapods were no longer tied to the water for reproduction. True or false? 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. O It made them able to take advantage of new food sources. It paved the way for the development of a bony skull. What are the major evolutionary trends that developed among major vertebrate groups, specifically those that allowed for the transition from aquatic to terrestrial life? Which characteristic is shared by cnidarians and flatworms? Which of the following is a characteristic of all chordates at some point during their life cycle? C) lay eggs In most vertebrates, the embryonic notochord . results in heterokaryotic or dikaryotic cells. D) lungfish. C) the same as that occurring in mammalian lungs
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