The literal meaning of “gastrulation” is
Formation of primary germ layers
Formation of a gut
Morphogenetic movement
Commencement of organogenesis
Assertion : Death is one of the important regulatory process on earth.
Reason : It avoids over-crowding caused by continuous reproduction.
Umbilical cord in mammals, contains
Blood flowing in umbilical cord is
Where do sperms get matured?
Cleavage in bird's egg is