Question

Which description best defines blastocyst?

A)a fertilized egg
B)an egg released from the ovary
C)a mass of specialized cells
D)an embryo with a notochord

Answer 1

The description that best defines a blastocyst would be C. A mass of specialized cells, as a result of the cell, embryo growing and undergoing mitosis. For the respective layers of cell in the embryo.

Answer 2

The correct answer is option C

Blastocyst can be defined as a mass of specialized cells that has gone through differentiation and this structure is formed after the 5 days from of fertilization. The fluid filled cavity opens up into morula which looks like a ball of cells. This structure is formed as an early development of the mammals. It almost looks like a cluster of cells.