Lampreys Sharks ai į ie Bony fish tre s Jaw spe ie trees t or ext Lung or swimbladder Lungfish E Amphibians Mammals Four legs Hair Moisture-retaining egg for terrestrial living Turtles Snakes and lizards Skull with two openings Crocodiles Birds 52 Feathers
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Find the hash mark indicating the origin of jaws. Which groups of vertebrates
possess jaws? Which group(s) diverged before jaws originated?
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- In the animal kingdom today, poikilotherms outnumberhomeotherms by a great margin. Why is poikilothermy asuccessful way of life even though poikilotherms sometimesmust compete successfully with homeotherms to survive?Extast Cyclostomes, whichincludes has fishesnd Lampreys, are theo dest lineage of vertebrates, which chaachteran co) difforentlates extat Cycbstre from extant cartildaginaus Aish (chandraichlyns)? Lyclostomes lack Jaws Cycbstomes haye cartlaginous, skeletons Darsal and ventral fAns absent from Cyclostones Cyclostones lack a Vertebrad Colum Cyclostames have mineralization of SkelehmsB E GL Heeth F teeth +no tee-th no teeth hair hain teeth +no haiY hair + Carni vone Carnivore + no hair Canni VOre no Carnivoret tail Carni vore teeth no toil tail tail tail hain_ egg layer no Heeth -hair egg layer no honnt thorns egg layer herbivo - ne no horns no honns Cornivore no claws + claws tail Live binth claws wings wings no horns claws fwings fred eyeS red eyes gree n eyes Scale Scale ho scale green Spot Nospot Most Recent Common Anceston of A- G
- Compared to other actinopterygians, teleosts _____. reach sexual maturity later in life and live much longer have greater jaw mobility have fewer chromosomesA bird's keratin-lined _______ helps it grind up food. a. pharynx b. crop c. gizzard d. gastrovascular cavityE Sylvanus Gator - Zbarsk x e) StudentVUE Presentation Session ses/502861/quizzes/750681/take/questions/4415505 opy of mom it for.. • Maps G G old Telephone Ima. O Preview attachmen.. Vinta Question 4 Fur seals and sea lions have similar anatomy. They probably have a common ancesto What additional evidence would also support the idea that the two animals have a common ancestor? O Both animals live in the Pacific Ocean. O The animals are members of different taxonomic kingdoms. O The animals have very similar sequences in their CNA. O Ten million year old fossils are found of both animals. • Previous Next
- Some species of animals gain physiological advantages byexploiting the specialized physiological capabilities of otherspecies. Explain how marine mammals that prey on teleost fishrather than invertebrates illustrate this principle. Also explainhow carnivorous mammals that prey on herbivorous mammalsin deserts illustrate the same principle.Summoning Moaquitoes Parasites sometimes alter their hosts behavior in a way that increase their chances of transmission to another host. Dr. Jacob Koella and his associates hypothesized that Plasmodium might benefit by making its human host more attractive to hungry mosquitoes when gametocytes are available in the hosts blood. Gametocytes taken up by the mosquito will mature into gametes and mate inside its gut. To test their hypothesis, the researchers recorded the response or mosquitoes to the odor or Plasmodium-infected children and uninfected children over the course of 12 trials on 12 separate days. FIRGURE 21.18 shows their results. FIGURE 21.18 Attracting mosquitoes. The graph shows that the number of mosquitoes (out 100) attracted to uninfected children, children harboring the aseoual stage of Plasmodium, and children with gametocytes in their blood. The bars show the average number of mosquitoes attracted to that category of child over the course of 12 separate trials. On average, which group of children was most attractive to mosquitoes?In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs createdmuch confusion. To modern biologists, a platypus isclearly a mammal. It has fur and the females producemilk. Young animals have typical mammalian teeth thatare replaced by hardened pads of the “bill” as the animalmatures. Why do you think modern biologists can moreeasily accept that a mammal can have some reptileliketraits than scientists who were considering this animal inthe late 1700s?
- "Simple" animals are distinguished from more "complex" animals by their O presence of hair and mammary glands O tissue complexity O multicellularityFrog Whale Human Bat m2. According to the following figure, how long did it take the modern horse to appear from its oldest ances- tor, Eohippus? -MILIOH TEAAS AGO S MLION YEAS AG0-00AY Ea ferus cabalur Modem home) YEARS AGO YEAB NED YEARS AGO Eahppes Masatppus Pohppus