Question

Differentiated embryonic layers are called–
$\text{I}$. Ectoderm $\text{II}$. Endoderm
$\text{III}$. Mesoderm $\text{IV}$. Mesoglea

• A. $\text{I, II}$ and $\text{IV}$
• B. $\text{I, II}$ and $\text{III}$
• C. $\text{II, III}$ and $\text{IV}$
• D. $\text{I, III}$ and $\text{IV}$

Answer 1

The correct option is B $\text{I, II}$ and $\text{III}$

Ectoderm, endoderm and mesoderm are the differentiated embryonic layers in animals. Mesoglea is undifferentiated layer present in between the ectoderm and mesoderm in sponges.
So, the correct answer is option 'b'.