The word Annelida derived from the Latin word annulus which means little rings. Annelida is also known as ringworm or segmented worm. They show the organ system level of the organization. The body wall of Annelida has circular, longitudinal, and oblique muscles that help in locomotion. Locomotion Annelida takes place by chitinous setae or by appendages called parapodia or by suckers. It has a complete digestive system and digestion is extracellular. Respiration in Annelida takes place through the skin or gills. Annelida are the first animals who have closed circulatory systems except for hirudinarians. The body of the ringworm is covered by a transparent, moist, non-chitinous cuticle secreted by ectoderm. So, take this quiz and increase your knowledge about phylum Annelida or segmented worms, or ringworms.
1. The earthworm has no special structures for...
A. Locomotion
B. Nutrition
C. Respiration
D. Circulation
2. Leech is......
A. Unisexual
B. Vector
C. Dioecious
D. Hermaphrodite
3. The total number of segment leech is.....
A. 44
B. 33
C. 22
D. 11
4. How many total numbers of segments present in earthworm?
A. 120
B. 100
C. 80
D. 60
5. Suckers of leech are located at......
A. Anterior end
B. Posterior end
C. Anterior and posterior end
D. All over the body
6. How many lateral hearts in Pheretima?
A. 8
B. 12
C. 4
D. 16
7. In which of the following animal, respiration occurs without any respiratory organ?
A. Cockroach
B. Fish
C. Frog
D. Earthworm
8. Which one is image forming visual organ in earthworm?
A. Photoreceptors
B. Ocellus
C. Stigma
D. None of these
9. Earthworm is.....
A. Useful
B. Harmful
C. More useful than harmful
D. More harmful
10. Which of the following is commonly called a peanut worm?
A. Hirudo
B. Sipunculus
C. Polynoe
D. Terebella
11. The suctorial mouth is present in ....
A. Leech
B. Tapeworm
C. Ascaris
D. Pheretima
12. Earthworm has....
A. Many eyes
B. Two eyes
C. Single eye
D. No eyes*
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