Which part of the alimentary canal of earthworm (in the given figure) helps in grinding the soil particles ?

Alimentary canal of earthworm is

Alimentary canal of earthworm is

Which of the following part of alimentary canal of earthworm helps is grinding the soil particle and decaying leaves?

Which part of alimentary canal receives bile from the liver?

Which part of alimentary canal receives bile from the liver?

Where in the alimentary canal of earthworm grinding occurs?

Where in the alimentary canal of earthworm grinding occurs?