A:
Cleavage Brings About Considerable Increase In The Mass Of Protoplasm
B:
In The Second Cleavage Division, One Of The Two Blastomeres Usually A Little Sonner Than The Second
C:
With More Cleavage Divisions, The Resultant Blastomeres Become Larger And Larger
D:
Cleavage Division Results In A Solid Ball Of Cells Called Morula
Explanation
D: Cleavage Division Results In A Solid Ball Of Cells Called Morula is the correct option regarding embryonic development in humans.
During embryonic development, the zygote undergoes a series of cell divisions called cleavage. These divisions lead to the formation of a solid ball of cells called a morula. The morula then undergoes further divisions to form a hollow ball of cells called a blastula, which eventually develops into the gastrula.
Option A is incorrect because cleavage does not bring about a considerable increase in the mass of protoplasm. Rather, it divides the zygote into smaller cells.
Option B is incorrect because both blastomeres usually divide at the same time during the second cleavage division.
Option C is incorrect because with more cleavage divisions, the resultant blastomeres become smaller and smaller, not larger and larger.
