1. REPTILES Výukový materiál OR 03 - 75 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. REPTILES have changeable blood heat (cold-blooded) reproduction does not depend on water environment adapted to land life breath by lungs the surface of a body is protected against drying by: shell bone plates corneous scales

3. REPTILES secretion: concentrate urine (they keep water in the body) lay eggsmost of them lay eggs ovoviviparieovoviviparie (young ones are come out from eggs during laying) – a viviparous lizard, a slow- worm, a smooth snake viviparieviviparie – a viper eggs on the land and some of them care of them growth of reptiles is slow, they grow whole their lives

4. TORTOISES have shells from bone plates, vertebras and ribs grow out of them toothless jaws (hard keratin) live in tropics and subtropics 200 kinds of tortoises an european pond turtle is original in our country A red eared slider, a spur-thighed tortoise, a galapagos tortoise, a green sea turtle

5. European pond turtle

6. Red eared slider

7. Spur-thighed tortoise or Greek tortoise

8. Crocodiles their body is covered by corneous carapaces, there are corneous plates under them they live in water (they swim with help of the tail) they lay eggs on the land they eat fish, land vertebrates and carrions, young ones eat insect and small fish

9. Crocodiles we divide crocodiles into: 1) crocodiles 2) alligators and caymans 3) gavials

10. Crocodile

11. Alligator

12. Gavial

13. Squamata SNAKES AND LIZARDS the body is covered by scales they get the skin off (snakes whole, lizards in parts ) tongue - jagged there exist about 6000 different kinds lizards (eyelids are not grown together) snakes (eyelids are grown together)

14. Squamata warning behaviour (signals of threat): they open their mouths they extend their bodies they produce sound signals

15. Squamata LIZARDS the most numerous group of reptiles most of them live in tropics and subtropics on ground, in trees, in water most of them have fully developed legs their tail breaks off in dangerous (protection against predators) there are 3 kinds of lizards and a slow-worm in our country

16. Slow-worm

17. Sand lizard

18. Squamata SNAKESSNAKES the youngest group of reptiles they do not have limbs both halves of both jaws are flexibly connected by extensible ligaments swallowing of big bites transparent eyelids are grown together venom glands

19. Squamata their sight is imperfect they do not have an outer auditory organ and an ear drum they have Jacobson´s organ (a hole in the top plate of the mouth)– it reacts to chemical stimulations (smells) they have organs reacting to temporal changes

20. Squamata our snakes: A viper, ringsnakes (a grass snake, a smooth snake, an aesculapian snake) boas : constrictors, anacondas (South America), pythons (SE Asia, Australia and Africa) poisonous: cobra, rattle-snake, sea serpent

21. Viper

22. Ringsnake

23. Cobra

24. Revision: 1. What is the difference between reptiles and amphibians? 2. Are reptiles cold blooded? 3. Viviparous reptile is …………… 4. Which tortoise is original in the Czech Republic? 5. Our reptiles (except lizards) include….. 6. What do reptiles excrete?

25. Source: 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)http://commons.wikimedia.org