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Question-1
How are the last pair of chromosome different in their function in Human beings?
(A)
They give us strength.
(B)
They influence our behaviour
(C)
They gives us long life.
(D)
They influence/ determine our sex.
Question-2
Adolescent age is between the years -
(A)
11 to 18
(B)
11 to 25
(C)
10 to 15
(D)
8 to 20
Question-3
Chemicals produced by ants which help them to coordinate each other are known as
(A)
Hormones
(B)
Enzymes
(C)
Coordinators
(D)
Pheromones.
Question-4
Ovum or egg is produced by
(A)
Uterus
(B)
Ovary
(C)
Fallopian tube
(D)
Testes
Question-5
How are endocrine glands different from exocrine glands?
1. Endocrine glands produce hormones while exocrine glands produce other secretions.
2. Endocrine glands have ducts while exocrine glands do not have ducts.
3. Endocrine do not have ducts while exocrine glands have ducts.
4. Endocrine glands produce enzymes while exocrine glands produce hormones.
(A)
1 and 2
(B)
1 only
(C)
1 and 3
(D)
2 and 4
Question-6
__________ and __________ are endocrine glands.
(A)
Pituitary glands and tear glands
(B)
Tear glands and Liver
(C)
Liver and Thyroid glands
(D)
Pituitary glands and Thyroid glands.
Question-7
Thyroxin maintains -
(A)
Vitamin and hormone utilization
(B)
Protein fat and carbohydrate utilization
(C)
Vitamins and mineral utilization.
(D)
Utilization of all nutrients.
Question-8
Hormones are required in __________ quantities.
(A)
Small quantities
(B)
Large quantities
(C)
Different quantities
(D)
Any quantities
Question-9
Metamorphosis is delayed when the water in which tadpoles live is deficient of the mineral -
(A)
Iron
(B)
Iodine
(C)
Glucose
(D)
Salt
Question-10
Hormone thyroxin needs __________ for its production.
(A)
Iron
(B)
Calcium
(C)
Iodine
(D)
Phosphorus
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Std 8
CBSE
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