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Question-1
Chemical name of the vitamin A.
(A)
Retinol
(B)
Thiamine
(C)
Riboflavin
(D)
Cobalamin
Question-2
Which of the enzyme is contained in the saliva?
(A)
Amylase
(B)
Maltose
(C)
Sucrase
(D)
Lipase
Question-3
Many of the organisms live in close association with another organism of a different species. This type of association is known as:
(A)
Mutualism
(B)
Symbiosis
(C)
Association
(D)
Parasitism
Question-4
Parasites which live on the surface of their host are called:
(A)
Ectoparasites
(B)
Endoparasites
(C)
Predator
(D)
All of these
Question-5
A plant material which we cannot digest, and consists mostly of cellulose and lignin.
(A)
Mineral
(B)
Carbohydrate
(C)
Vitamin
(D)
Fibre
Question-6
The greenish coloured bile pigment producing organ.
(A)
Small intestine
(B)
Large intestine
(C)
Liver
(D)
Kidney
Question-7
Which of the watery liquid is secreted by the salivary gland?
(A)
Gastric juice
(B)
Saliva
(C)
Bile
(D)
All of these
Question-8
Which organic ion helps in the formation of haemoglobin?
(A)
Iron
(B)
Iodine
(C)
Calcium
(D)
Phosphate
Question-9
Which of the following belongs to the phylum Platyhelminthes?
(A)
Sarcodina
(B)
Sporozoa
(C)
Nemathelminthes
(D)
Flat worms
Question-10
In some instances, only one of the two species in the symbiotic relationship gains benefit, while the other is harmed. Such a relation is called:
(A)
Mutualism
(B)
Symbiosis
(C)
Association
(D)
Parasitism
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Cambridge Advanced Grade 12
IGCSE
Practice in Related Chapters
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