KORDAMINE Kahepaiksed 2 11. Kus valmivad kahepaiksete munarakud? ......................................................................................................................................................... 12. Milline viljastamine on amfiibidel? ......................................................................................................................................................... 13. Miks on isaste kahepaiksete esijäsemetel suur kare mõhn? ......................................................................................................................................................... 14. Kuidas nimetatakse konnade vastseid teise nimega? ........................................................................................................................................................ 15. Kirjelda, kuidas toimub konna arengus metamorfoos. ......................................................................................................................................................... ......................................................................................................................................................... 16. Kui vanaks konnad elavad? ......................................................................................................................................................... 17. Mille poolest on kahepaiksed eriline selgroogsete rühm? ......................................................................................................................................................... .......................................................................................................................................................... 18. Millised on kaks olulist muutust kahepaiksete ehituses lisaks veekeskkonnale ka maismaaeluga kohastumiseks? ......................................................................................................................................................... ......................................................................................................................................................... 19. Selgita ööpäevast tsüklilisust kahepaiksete eluviisis. ......................................................................................................................................................... ......................................................................................................................................................... 20. Kes on kahepaiksete põhilised vaenlased? ......................................................................................................................................................... |