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Quiz 1
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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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