hyaluronidase
hyaluronic acid
androgamone
cryanogamone
A. hyaluronidase
epiboly
emboly
morphogenetic movements
involution
ectoderm
endoderm
mesoderm
ecto and mesoderm
a cord between mother and foetus
place of attachment in uterus wall where exchange of material between mother and foetus takes place
outer covering of foetus
allantoic part of the uterus
direct ontogenic development
indirect ontogenic development
chordates
embryogenesis in mammals
Frog
Housefly
Hydra
Mosquito
disappearance of tail
food habit becoming carnivore
land habit
excretion beocmes mesonephric
primary oocyte
secodnary oocyte
ootid
gonocyte
fertilized egg
spermatozoa
unfertilized egg
egg membranes
zygote of frog
brain of rabbit
eye of frog
retina of cockroach
Spinal cord and brain
Liver and heart
Eye and skin
Notochord and vertebral colum.
copulation
amphimixis
syngamy
amplexus
flagellum
acrosome
sperm lysins released from the acrosome
mitochondira located at the middle piece
4-5 years
6-8 years
8 - 10 years
12 -14 years
ovuation
placentation
gestation
parturition
monoecious
dioecius
intersexual
hermaphrodites
enlarges in size
decreases in size
retains the same size at the beginning
gradually enlarges in size
folliculogenesis
oogenesis
vitellogenesis
spermiogenesis
mammals
lizards
fowls
earwigs
die immediately
start dividing
will remain undivided
transform into a tadpole at a faster rate
histogenesis
paedogenesis
histolysis
paedomorphosis
one cell
100 cells
1000 cells
10000 cells
parthenogenesis
parthenocarpy
polyembryony
paedogenesis
ova
sperm
both and
primary spermatogonia
the spermatids differentiate into spermatozoa
primary spermatcyte is tarnsformed into a secondary spermatocyte
spermatogonea complete multiplication phase
secondary spermatocyte extrudes polar bodies
vitellogenesis
oogenesis
spermatogenesis
fertilization
Spider
Crow
Honeybee
Earthworm
paedogamy
autogamy
isogamy
anisogamy
ectoderm
meso derm
somatic mesoderm and endoderm
splanchnic mesoderm and ectoderm
3
8
4
12
ovulation
oogenesis
vitellogenesis
folliculogenesis