Developmental Mechanisms Problem Set

Problem 9: Structure of the blastula

The sheet of cells in the blastula of a developing animal embryo is called the:

A. blastocoel

B. blastoderm
The blastula is composed of the sheet of cells on the outside called the blastoderm and a cavity on the inside called the blastocoel.

C. blastoplast

D. blastopore

E. mesenchyme

The Biology Project Department of Biochemistry and Molecular Biophysics The University of Arizona Thursday, October 30, 1997
Contact the Development Team