What is the correct sequence through which early development proceeds?
A) morula → zygote → gastrula → blastula
B) zygote → blastula → morula → gastrula
C) zygote → blastula → gastrula → morula
D) zygote → gastrula → blastula → morula
E) zygote → morula → blastula → gastrula

Question

Quizplus · Accepted Answer

The correct sequence of early development starts with the zygote, which is the fertilized egg. The zygote then divides to form a solid ball of cells known as the morula. As cell division continues, the morula develops into the blastula, a hollow ball of cells. Finally, the blastula undergoes gastrulation to form the gastrula, which has differentiated layers of cells that will develop into the various tissues and organs of the organism.

What Is the Correct Sequence Through Which Early Development Proceeds