zygote of frog
brain of rabbit
eye of frog
retina of cockroach
A. zygote of frog
vitellogenesis
oogenesis
spermatogenesis
fertilization
die immediately
start dividing
will remain undivided
transform into a tadpole at a faster rate
histogenesis
paedogenesis
histolysis
paedomorphosis
early blastula
late blastula
early gastrula
lategastrula
Spider
Crow
Honeybee
Earthworm
Spinal cord and brain
Liver and heart
Eye and skin
Notochord and vertebral colum.
ova
sperm
both and
primary spermatogonia
flagellum
acrosome
sperm lysins released from the acrosome
mitochondira located at the middle piece
epiboly
emboly
both and
delamination
man
hen's egg
frog
rabbit
completely disappears during metamorphosis
partialy retained during metamorphosis
partially disappears during later stages of metamorphosis
fully retained in the adult frog
Vasa efferentia, Bidder's canal, uriniferous tubule and nephrotome
Vasa efferentia, Bidder's canal, and uriniferous tubule
Vasa efferentia, uriniferous tubule nd Bidder's canal.
Vasa deferentia, uriniferous tubule and Bidder's canal
spermiation
spermiogenesis
spermatogenesis
androgenesis
sperms of same species are essential
sperms do not need penetration
sperms of any animal can fertilize
only presence of male is sufficient
ectoderm
meso derm
somatic mesoderm and endoderm
splanchnic mesoderm and ectoderm
spermatogenesis
oogenesis
spermiogenesis
gametogenesis
fertilized egg
spermatozoa
unfertilized egg
egg membranes
ovuation
placentation
gestation
parturition
mammals
lizards
fowls
earwigs
neurulation
tubulation
crania tion
none of these
holoblastic
meroblastic
diploblastic
triploblastic
ovulation
oogenesis
vitellogenesis
folliculogenesis
monoecious
dioecius
intersexual
hermaphrodites
foregut
midgut
hindgut
somatopleure
Frog
Housefly
Hydra
Mosquito
primary oocyte
secodnary oocyte
ootid
gonocyte
disappearance of tail
food habit becoming carnivore
land habit
excretion beocmes mesonephric
centrolecithal
microlecithal
mesolecithal
telolecithal
the spermatids differentiate into spermatozoa
primary spermatcyte is tarnsformed into a secondary spermatocyte
spermatogonea complete multiplication phase
secondary spermatocyte extrudes polar bodies
zygote of frog
brain of rabbit
eye of frog
retina of cockroach