The fertilized egg begins a rapid descent to the uterus. The period of rest in the tube appears to be necessary for full development of the fertilized egg and for the uterus to prepare to receive theegg. ... At the end of this transition period, the embryo becomes a mass of very organized cells, called a blastocyst.
Answer:
Liquid metal.
Tell me if wrong. :) Hope it helps!
Explanation:
Answer:
Explanation: IT should be B
The answer is B and D i learned this in biology last week
