TLS Online TPP Program

#Question id: 5614


One difference between the blastula and gastrula stages of development is that

#SCPH01 Biochemistry
  1. blastula cells are more differentiated than gastrula cells.

  2. there are many more cells in a blastula.

  3. the blastula consists of more cell layers.

  4. there is an opening from the cavity inside the gastrula to the outside.