ANNELIDS (RINGED WORMS) Výukový materiál OR Tvůrce: Mgr. Alena Výborná Tvůrce anglické verze: ThMgr. Ing. Jiří Foller Projekt: S anglickým jazykem do dalších předmětů Registrační číslo: CZ.1.07/1.1.36/ Tento projekt je spolufinancován ESF a SR ČR
ANNELIDS worm-like shape of the body fresh water, salty water and terrestrial they need moisture body separated into regular links
ANNELIDS Polychaetes (many hairs) Clitellates (with a collar) ▫ LEECH
POLYCHAETES mostly in the sea the most beautiful is sea mouse (Aphrodita aculeata) ▫ it lives in European seas ▫ in shallow water among stones ▫ it is a predator
POLYCHAETES – SEA MOUSE
POLYCHAETES bearded fireworm ▫ it lives on the lower side of stones in the shore part of the sea
CLITELLATES COLLAR ▫ it makes easier the transmission of sexual cells ▫ it makes a covering around laid eggs ▫ it enlarges in the time of reproduction common earthworm sludge worm (Tubifex) leech
CLITELLATES Common earthworm ▫ It lives in most soil ▫ It consumes decomposing stuff (destruent) ▫ Hermaphrodite ▫ Mating proceeds in wet nights ▫ Great importance by hoeing and aerating of the soil
CLITELLATES – common earthworm
CLITELLATES Sludge worm ▫ in the mud of backwater and slowly flowing water ▫ it feeds on decomposing stuff
CLITELLATES Leech ▫ body on both the ends equipped with suckers ▫ it is predacious or sucks the blood ▫ it lives mainly in fresh water ▫ in the tropical zone also terrestrial ▫ horse leech ▫ eight-eyed leech ▫ fish leech (it sucks the fish blood)
CLITELLATES – horse leech
CLITELLATES
REVISION: 1) The body of annelids is created from… ▫ regular links 2) In European seas in shallow water live… ▫ sea mouse 3) In the mud of backwater lives… ▫ sludge worm 4) It sucks blood on fish… ▫ Fish leech 5) Transmission of sexual cells by common earthworm is made easier by… ▫ collar
SOURCES: DOB RORUKA, Luděk J. Přírodopis pro 7. ročník základní školy. 1. vyd. Praha: Scientia, 1998, 152 s. ISBN Obrázky: (osvobozeno od autorských práv)