Multiple choice

The solid ball of the cells formed from cleavage is called

  1. blastula

  2. morula

  3. blastomere

  4. gastrula

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The solid ball of cells resulting from initial cleavage divisions of a fertilized egg is called a morula. As division continues, it develops into a blastula containing a fluid-filled cavity.