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Quiz 1
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Q.1
The body wall of the earthworm is externally covered by ______
a) mucous
b) capsule
c) epidermis
d) cuticle
Q.2
The epidermis of earthworm is made of ______
c) columnar epithelial cells
a) squamous epithelial cells
b) cuboidal epithelial cells
d) multi-layered squamous epithelial cells
Q.3
The buccal cavity of the earthworm leads to the _____
a) gizzard
b) esophagus
c) pharynx
d) anus
Q.4
Identify the correct pathway of food ingested by an earthworm.
a) Mouth→Pharynx→Esophagus→Gizzard
b) Mouth→Esophagus→Pharynx→Gizzard
c) Mouth→Esophagus→Gizzard→Pharynx
d) Mouth→Pharynx→Gizzard→Esophagus
Q.5
What is the function of gizzard in earthworm?
a) Secretion of digestive enzymes
b) Grinding soil particles and leaves
c) Absorption of water
d) It is a respiratory structure
Q.6
Where are the calciferous glands of the earthworm present?
a) Esophagus
b) Gizzard
c) Stomach
d) Intestine
Q.7
Which segments of the earthworm contain the stomach?
a) 9th to 14th
b) 23rd to 25th
c) 16th to 18th
d) 5th to 8th
Q.8
Which segment of the earthworm contains the intestinal caecum?
a) 25th
b) 23rd
c) 24th
d) 26th
Q.9
What is the function of typhlosole in earthworm?
a) Mechanical breakdown of food
b) Secretes digestive enzymes
c) Increases the surface area for absorption
d) Excretes waste products
Q.10
Open blood vascular system is present in Pheretima.
a) True
b) False
Q.11
Which segments of the earthworm contain the blood glands?
a) 9th to 12th
b) 16th to 18th
c) 23rd to 25th
d) 4th to 6th
Q.12
Respiratory exchange in earthworms takes place through ______
a) gills
b) mouth
c) body surface
d) lungs
Q.13
What is the excretory organ in earthworm known as?
a) Gizzard
b) Typhlosole
c) Nephridium
d) Setae
Q.14
Which of the following is not a type of nephridia present in earthworm?
a) Intestinal
b) Septal
c) Integumentary
d) Pharyngeal
Q.15
Which of the following is not true about nephridia in earthworm?
a) They are excretory organs
b) They do not regulate the composition of body fluids
c) They are of three types
d) They regulate the volume of body fluids
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