Question

question 11
1 pts
in diploblastic organisms, the two tissue layers are ______.
mesoderm and endoderm
ectoderm and endoderm
ectoderm and mesoderm
mesoglea and blastoderm

Explanation:

Diploblastic organisms have two - germ layers. The outer layer is the ectoderm and the inner layer is the endoderm. Mesoderm is present in triploblastic organisms. Mesoglea is a non - cellular jelly - like layer in some diploblasts but not a germ layer, and blastoderm is an early embryonic structure not one of the two main tissue layers in diploblasts.

Answer:

B. ectoderm and endoderm