The amnion of mammalian embryo is derived from
ectoderm and mesoderm
endoderm and mesoderm
ectoderm and endoderm
mesoderm and trophoblast
A.
ectoderm and mesoderm
The extraembryonic or foetal membranes are amnion, chorion, allantois and Yolk sac.
Amnion is formed from mesoderm on the outer side and ectoderm on the inner side.
Chorion is formed from trophoectoderm and mesoderm whereas allantois and Yolk sac membrane have mesoderm on outer side and endoderm in the inner side.
Alexander Von Humbolt described for the first time
Ecological Biodiversity
Laws of limiting factor
Species area relationships
Species area relationships
Mycorrhizae are the example of
Fungistasis
Amensalism
Antibiosis
Antibiosis
Asymptote in a logistic growth curve is obtained when
The value of 'r' approaches zero
K = N
K > N
K > N
Annual migration does not occur in the case of
salmon
siberian crane
salamander
salamander
