Earthworm is an invertebrate.

Which of these is not a function of the sensory system of earthworms?

In frog, the ventricle opens into __

How many chambers are present in the heart of the frog?

How many legs are there in each thoracic segment of a cockroach?

Pancreatic juice is delivered to the duodenum by the ___

Which of the following is not true about nephridia in earthworm?

Which of these is characteristic of hindwings of a cockroach?