Tardigrade
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Tardigrade
Question
Biology
Pregnancy begins with implantation of
Q. Pregnancy begins with implantation of
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NTA Abhyas
NTA Abhyas 2022
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A
Embryo
B
Fertilised ovum
C
Blastopore
D
Blastocyst
Solution:
The blastocyst is a structure formed in the early developmental stage of mammals. It possesses an inner cell mass, that subsequently forms the embryo. The outer layer of the blastocyst consists of cells collectively called the trophoblast.