Výukový materiál OR 03 78 Tvůrce Mgr Alena Výborná Tvůrce anglické verze Mgr Miloslava Dorážková Projekt S anglickým jazykem do dalších předmětů Registrační číslo CZ1071136030005 ID: 489936
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VIVIPAROUS
Výukový materiál OR 03 - 78Tvůrce: Mgr. Alena VýbornáTvůrce anglické verze: Mgr. Miloslava DorážkováProjekt: S anglickým jazykem do dalších předmětůRegistrační číslo: CZ.1.07/1.1.36/03.0005Tento projekt je spolufinancován ESF a SR ČRSlide2
VIVIPAROUS
They appeared about 100 million years agoWe divide them into:MarsupialsPlacental mammalsBoth these groups were developed separatelySlide3
VIVIPAROUS
Mammals are distinguished by these features:1) Stable body temperature2) The body is covered by fur consisted of hairsGuard hairs (tough)Underfur (soft)Tactile hairsFur change = moulting3) Mammary glands4) Jaws have teeth5) They breathe by lungsSlide4
VIVIPAROUS - marsupials
They deliver imperfectly developed young onesThe other development of young ones takes place in a pouch on the bellyInside of the pouch there are milk nipples and a young attaches to themMilk is injected into the mouth of the young several timesThey live in Australia and South AmericaSlide5
VIVIPAROUS
marsupials A koalaA common opossumA southern marsupial moleA Tasmanian wolfA greater gliderKangaroosSlide6
Koala
An Australian marsupialThe fingers on the forelimbs are grown togetherThey live in treesA food specialist – leaves of eucalyptusSlide7
KoalaSlide8
Kangaroo
They live in AustraliaThey have strong hind-limbsThey make big jumps thanks to the hind-limbsThey use a strong tail as a supportHerbivoresSlide9
KangarooSlide10
A
southern marsupial mole and a greater glider A southern marsupial moleSand areasIt looks like a mole A greater gliderAmong limbs and sides there is a special skin membrane covered by furSliding flightSlide11
A sugar
gliderSlide12
VIVIPAROUS - placentalia
An embryo is developed in the mother´s bodyIt is nourished by placentaThe babies are born developedThey are fed by breast milk which they suckTheir species are larger than marsupialsSlide13
VIVIPAROUS - placentalia
InsectivoraChiropteraPrimatesRodentialsHaresFelinesPinnipediansProboscideaPerrisodactyleArtiodactylsCetaceansSlide14
REVISION:
1) …………mammals are nourished thanks to placenta. 2) When did the first viviparous appear? 3) The food specialist is:4) The mammals fur exchange is called:5) Do marsupials suck breast milk?Slide15
Sources:
DOBRORUKA, Luděk J. Přírodopis pro 7. ročník základní školy. 1. vyd. Praha: Scientia, 1998, 152 s. ISBN 80-718-3134-4Obrázky: http://commons.wikimedia.org (osvobozeno od autorských práv)