Blood flowing in umbical cord of mammalian embryo is:
A.50% maternal and 50% foetal
B.100% maternal
C.75% maternal and 25% foetal
D.100% foetal
A.50% maternal and 50% foetal
B.100% maternal
C.75% maternal and 25% foetal
D.100% foetal
A.Feeds upon aquatic plants
B.Hoes not posses scales
C.Does not posses gills
D.Has spirally coiled intestine
A.Degeneration
B.Jerks
C.Encystment
D.None of these
A.Discoidal
B.Metadiscoidal
C.Diffuse
D.Zonary
A.Zygote, cleavage morula, blastula gastrula
B.Zygote, morula, blastula, cleavage, gastrula
C.Zygote, blastula, morula, eleavage gastrula
D.Zygote, morula, blastula, gastrula, cleavage
A.Growth takes place
B.Larva changes to adult
C.Development is through parthenogenesis
D.None of these
A.Anterior side
B.Posterior side
C.Dorsal side
D.Ventral side
A.Microlecithal
B.Mesolecithal
C.Telolecithal
D.Polylecithal
A.Haemoendotherial type
B.Haemochorial type
C.Endotheliochorial type
D.Syndesmochorial type
A.20 days
B.32 days
C.45 days
D.60 days