Which of these is not true about hepatic caeca in cockroach?

Which of this is not a distinguishing feature of a male frog?

What is the name of the tissue given in the following figure?

Which of these pairs of abdominal segments are a part of brood pouch of female cockroach?

What are earthworms commonly called as?

Which of the following is not a type of connective tissue?

Segments 18-19 are called as clitellar segments.

Which of these structures in frog receive sound signals?