Buccal chamber in earthworm extends upto:
A.1st segment
B.2nd segment
C.3rd segment
D.4th segment
A.1st segment
B.2nd segment
C.3rd segment
D.4th segment
A.Hydra
B.Earthworm
C.Pila
D.None of these
A.14
B.15
C.16
D.None of these
A.Secrete enzymes
B.Secrete mucus
C.Increase area of intestine
D.None of these
A.Lungs
B.Gills
C.Buccal chamber
D.Skin
A.1 ?3
B.3 ?5
C.5 ?7
D.None of these
A.Extensive
B.Absent
C.Reduced due to botryoidal tissue
D.None of these types but of different nature
A.Mixing enzyme with food
B.Absorption of food
C.Grinding of food
D.Storage of food
A.100 – 120
B.40 – 50
C.200 – 300
D.None of these
A.Grinding of food
B.Picking up food material in feeding
C.Absorbs food
D.Secretes enzymes