Question

In which part of the earthworm sense
organs are most concentrated?
1) Posterior part
2) Anterior part
3) Middle part
4) lateral part​

Answer 1

earthworm's sense organs are mostly located in the middle part of its body

Answer 2

Large numbers of chemoreceptors concentrate near its mouth. Circumferential and longitudinal muscles edging each segment let the worm move. Similar sets of muscles line the gut, and their actions move digesting food toward the worm's anus.

The 'head' or front of the earthworm is called its anterior.

So the correct answer is (2) Anterior part