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Seciranje ribe

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by

Zoran Rajak

on 9 March 2014

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Transcript of Seciranje ribe

Disekcija ribe
Drugi korak
Treci korak
Spoljasnja gradja ribe
Skrzni poklopac, ledjno peraje, bocna linija, oci, usni otvor, krljusti, grudna peraja, repna peraja, podrepno peraje, trbusna peraja.
Kretanje, disanje i
razmnozavanje
Ribe se krecu pomocu peraja, disu pomocu skrga, a razmnozavaju se polno.
Cula, srce i krvotok
Jedna stiroporska cinija, vata, podmetac, vlazne i obicne maramice, lupa, pinceta i makaze.
prvi korak
Ribu smo izvadili iz vode i stavili smo je u stiroporsku ciniju. kod ribljih skrga stavili smo vatu sa etarom, sa obe strane.

Pribor:
Spoljasnji izgled ribe
Riba ima: vretenast oblik tela,
sluzavu kozu, krljust, i regione:
glavu, trup, rep.
U otvorima krljusti bocne linije smestene su culne celije koje primaju uticaje (drazi) iz spoljasne sredine, srce (=1+1), i krvotok je zatvoren.
Rad radili:
Jovana Pandzic,
Viktor Rajak,
Nikola Vojinovic,
Marko Zekic i
Dusan Pisarov
Isekli smo ribu po rezovima iz knjige i gledali smo organe: jetru, riblji mehur, srce, polna zlezda (ikru), zeludac, crevo i zuc.
Uzeli smo pincetu i otkinuli smo jednu krljust i izbrojali smo godove i ima 1 god.
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