ectoderm
meso derm
somatic mesoderm and endoderm
splanchnic mesoderm and ectoderm
D. splanchnic mesoderm and ectoderm
die immediately
start dividing
will remain undivided
transform into a tadpole at a faster rate
spermatogenesis
oogenesis
spermiogenesis
gametogenesis
ovuation
placentation
gestation
parturition
early blastula
late blastula
early gastrula
lategastrula
vitellogenesis
oogenesis
spermatogenesis
fertilization
4-5 years
6-8 years
8 - 10 years
12 -14 years
parthenogenesis
parthenocarpy
polyembryony
paedogenesis
straight
curved
coiled
zig-zag
blastula and opens in blastocoel
blastula and opens in archenteron
gastrula and opens in blastocoel
gastrula and opens in archenteron
ectoderm
meso derm
somatic mesoderm and endoderm
splanchnic mesoderm and ectoderm
spermiation
spermiogenesis
spermatogenesis
androgenesis
completely disappears during metamorphosis
partialy retained during metamorphosis
partially disappears during later stages of metamorphosis
fully retained in the adult frog
neurulation
tubulation
crania tion
none of these
Spider
Crow
Honeybee
Earthworm
ovulation
oogenesis
vitellogenesis
folliculogenesis
ova
sperm
both and
primary spermatogonia
epiboly
emboly
morphogenetic movements
involution
one cell
100 cells
1000 cells
10000 cells
direct ontogenic development
indirect ontogenic development
chordates
embryogenesis in mammals
man
hen's egg
frog
rabbit
3
8
4
12
Frog
Housefly
Hydra
Mosquito
monoecious
dioecius
intersexual
hermaphrodites
sperms of same species are essential
sperms do not need penetration
sperms of any animal can fertilize
only presence of male is sufficient
endoderm
mesoderm
ectoderm
chordomesoderm
holoblastic
meroblastic
diploblastic
triploblastic
enlarges in size
decreases in size
retains the same size at the beginning
gradually enlarges in size
histogenesis
paedogenesis
histolysis
paedomorphosis
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
epiboly
emboly
both and
delamination