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OVIPAROUS

OVIPAROUS. Výukový materiál OR 03 - 77 Tvůrce: Mgr. Alena Výborná Tvůrce anglické verze: Mgr. Miloslava Dorážková Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/03.0005 Tento projekt je spolufinancován ESF a SR ČR. OVIPAROUS. the most primitive mammals

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OVIPAROUS

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  1. OVIPAROUS Výukový materiál OR 03 - 77 Tvůrce: Mgr. Alena Výborná Tvůrce anglické verze: Mgr. Miloslava Dorážková Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/03.0005 Tento projekt je spolufinancován ESF a SR ČR

  2. OVIPAROUS • the most primitive mammals • they do not bear living babies • they lay eggs • babies feed on maternal milk • females do not have milk nipples • babies lick the milk on the female abdomen • Australia, New Guinea

  3. OVIPAROUS - PLATYPUS • half-water lifestyle • it inhabits the banks of smaller watercourses • they dig up burrows • they hunt his food in the water • they feed on invertebrates • females usually lay two eggs

  4. PLATYPUS

  5. OVIPAROUS - ECHIDNA • a night mammal • it feeds on insects – ants, termites • it rakes up their nests with its strong claws • it picks up ants and termites with its long sticky tongue • females usually lay one egg

  6. ECHIDNA

  7. ECHIDNA

  8. OVIPAROUS • the male platypus and the echidna have a moving spur on the back leg, which is connected to venom glands • platypus´s venom causes swelling, pain and breathing difficulties • echidna´s venom is much weaker

  9. OVIPAROUS • platypus transports the lining of the nest into the burrows with its massive tail

  10. REVIEW: • 1) Does the platypus bear living animals? • No • 2) Which representative of oviparous occurs partly in the water? • Platypus. • 3) when is the echidna active? • At night. • 4) Where do oviparous mammals live? • In Australia and New Guinea • 5) Which representative produces venom, which causes swelling, pain and breathing problems? • Platypus.

  11. SOURCES • DOBRORUKA, Luděk J. Přírodopis pro 7. ročník základní školy. 1. vyd. Praha: Scientia, 1998, 152 s. ISBN 80-718-3134-4 • Obrázky: http://commons.wikimedia.org (osvobozeno od autorských práv)

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