Q.1
Which of the following does the nervous system of the earthworm not contain?
  • a) Nerve ring
  • b) Nerve cord
  • c) Ganglia
  • d) Brain
Q.2
At which of these segments does the nerve cord of the earthworm divide into two parts?
  • a) 5th, 6th
  • b) 8th, 9th
  • c) 3rd, 4th
  • d) 11th, 12th
Q.3
Which of these statements is true about nerve ring?
  • a) It has only sensory function
  • b) It has only motor function
  • c) It is present on the dorsal side
  • d) It is present on the ventral side
Q.4
Which of these is not a function of the sensory system of earthworms?
  • a) Visualize food
  • b) Distinguish light intensities
  • c) Detect vibrations
  • d) React to chemical stimuli
Q.5
Which of these statements regarding the sensory system of earthworm is false?
  • a) Eyes are absent
  • b) The sense organs are located posteriorly
  • c) Taste receptors are present
  • d) Receptor cells help to detect vibrations
Q.6
How many testes does Pheretima possess?
  • a) 1
  • b) 2
  • c) 4
  • d) 6
Q.7
The common prostate and spermatic duct of earthworms is known as ________
  • a) vasa deferentia
  • b) vasa efferentia
  • c) spermathecae
  • d) oviduct
Q.8
What is the role of spermathecae?
  • a) Sperm is produced here at the time of mating
  • b) It is an accessory organ
  • c) It is vestigial
  • d) It stores spermatozoa during mating
Q.9
How many ovaries are present in an earthworm?
  • a) 4
  • b) 1
  • c) 2
  • d) 6
Q.10
Larvae are formed during the development of earthworms. True or false?
  • a) True
  • b) False
Q.11
In earthworms, ovarian funnels open into the ______
  • a) spermathecae
  • b) female genital pore
  • c) ovary
  • d) oviduct
Q.12
What is exchanged during mating in earthworms?
  • a) Typhlosole
  • b) Ova
  • c) Spermatophores
  • d) Cocoons
Q.13
Where does fertilization occur for the earthworm?
  • a) Ovary
  • b) Spermathecae
  • c) Cocoon
  • d) Female genital pore
Q.14
Using earthworms to increase soil fertility is called ______
  • a) vermicomposting
  • b) sericulture
  • c) apiculture
  • d) pisciculture
Q.15
Which of these statements is true about earthworm?
  • a) They are harmful for agriculture
  • b) They are used as fishing bait
  • c) They decrease soil fertility
  • d) They cannot live in burrows
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