Question

The cells that develop to form the outer lining of an animal's body make up the _[blank]_.

blastula

ectoderm

endoderm

mesoderm

Answer 1

The answer is ectoderm. The mesoderm is the middle layer of lining. The endoderm is the innermost layer. You can remember it by:

Endo/ sounds like inner

Meso/ M for middle

Ecto/ sounds like exo, bugs have exoskeletons that are on the outside.

Step-by-step explanation: