PHYLUM ANNELIDA

PHYLUM ANNELIDA

1. What is common between earthworm, leech and centipede?

a. These are hermaphrodite b. These have no legs c. These have a ventral nerve cord

d. These have Malphighian tubules

2. Definite number of body segments are found in

a. Cockroach b. Earthworm c. Taenia d. Hydra

3. In earthworm following helps in locomotion

a. Chloragogen cells b. Spermatheca c. Clitellum d. Setae

4. Gizzard in Pheretima is an organ

a. Secretes slime b. For absorption of digested food c. For excretion

d. For crushing food

5. Which statement is true about earthworm?

a. Blood is blue b. Blood is red but haemoglobin is dissolved in plasma

c. Blood pigment is haemocyanin d. Blood is red but haemoglobin is dissolved in RBC’s.

6. How many “hearts” are found in earthworm?

a. 8 (four pairs) b. One pair c. 6 d. 12

7. Chloragogen cells of earthworms are analogous to vertebrates

a. Kidney b. Gut c. Liver d. Lungs

8. Which statement is not correct for septal nephridia of pheretima posthuma?

a. These occur in all segments except first fourteen b. These are enteronephric

c. These are exonephric d. These have a complicated nephrostome

9. Spermathecae in earthworm are found in segments

a. 6, 7, 8, 9 b. 4, 5, 6, 7 c. 5, 6, 7, 8 d. 3, 4, 5, 6

10. Heteronereis is a

a. Another name of Nereis b. Genus of an annelid

c. Asexual phase of Nereis d. Sexual phase of Nereis

11. Blood of pheretima is

a. Blue with haemocyanin in corpuscles b. Blue with haemoglobin in corpuscles

c. Red with haemoglobin in corpuscles d. Red with haemoglobin in plasma

12. Which one assists in locomotion

a. Trichocysts in paramecium b. Cnidoblasts in Obelia

c. Clitellum in Pheretima d. Posterior sucker in Hirudinaria

13. Trait common amongst Earthworm, Leech and Centipede is

a. Absence of legs b. Hermaphrodite nature c. Ventral nerve cord

d. Malphighian tubules

14. Nephridia of Eartgworm are analogous to

a. Nematoblasts of Hydra b. Tracheae of insects c. Flame cells of Planaria

d. Gills of prawn

15. Male genital apertures of earthworms are located in the segment

a. 19 b. 13 c. 14 d. 18

16. In Earthworm, arrangement of blood vessels is

a. Different in last fifteen segments b. Different in first thirteen segments

c. Same throughout d. Different in middle thirteen segments.

17. Chloragogen cells of Earthworm are similar to an organ of vertebrates

a. Lives b. Lung c. Kidney d. Spleen

18. Red colour of blood of Earthworm is due to

a. RBC b. Prophyrin c. Intracellular haemoglobin d. Inter cellular haemoglobin

19. Heart is absent in

a. Earthworm b. Nereis c. Cockroach d. Pila

20. Earthworm is kept in 40% KOH for long. The structure left intact is

a. Setae b. Sand particles c. Spermathecae d. Circular muscles

21. In earthworm, the forest of nephridia is in

a. Pharyngeal region b. Clittellar region c.Intestinal region d.Typhlosolar region

22. Which organ in earthworm is analogous to kidney of man?

a. Nephridium b. Testis c. Clitellum d. Intestine

23. The segmentation of earthworm is

a. External only b. Internal only c. Both d. None of these

24. Which animal respires but there is no respiratory organ?

a. Frog b. Cockroach c. Fish d. Earthworm

25. Oligochaetes have

a. Large number of setae b. No setae c. A few setae d. Innumerable setae


ANSWERS

1. c 2. b 3. d 4. d 5. b 6. a 7. c 8. c 9. a 10. d

11. d 12. d 13. c 14. c 15. d 16. b 17. a 18. d 19. b 20. a

21. b 22. a 23. c 24. d 25. c