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Question-1
The growth hormone produced by us is:
(A)
Adrenaline
(B)
Thyroixine
(C)
Somatotrophin
(D)
Somatostatin
Question-2
Butterfly caterpillar is:
(A)
Worm like, feeding on leaf, with wings.
(B)
Worm like, feeding on nectar, with wings.
(C)
Worm like, feeding on nectar, without legs.
(D)
Worm like, feeding on leaf, with legs.
Question-3
Which of the following is the dry mass of an organism?
(A)
Body weight
(B)
Total amount of cytoplasm
(C)
Weight of the dry contents
(D)
Bone weight
Question-4
Which of the following is used so that it shoots the growth of weeds and speeds up their rate of respiration to the extent that they exhaust their food resources and die?
(A)
Hormone posers
(B)
Weedicides
(C)
2, 4 - D
(D)
Phytohormones
Question-5
Chemical produced by endocrine glands which bring about changes in the body is called as:
(A)
Enzymes
(B)
Growth substancs
(C)
Hormones
(D)
Somatotropins
Question-6
The drastic change which converts larval stage to adult is:
(A)
Moulting
(B)
Metabolism
(C)
Metamorphosis
(D)
Development
Question-7
Which statement is correct?
(A)
In frog metamorphosis is complete, where as in cockroach it is incomplete.
(B)
In frog metamorphosis is incomplete, where as in cockroach it is complete.
(C)
In frog metamorphosis is gradual, where as in cockroach it is drastic.
(D)
In frog metamorphosis is drastic, where as in cockroach it is gradual.
Question-8
The chromosome number of the cells produced by mitosis.
(A)
Equal to that of zygote
(B)
Double than that of zygote
(C)
Half to that of the zygote
(D)
More than that of the zygote
Question-9
The disadvantage of using dry mass for measuring growth is that:
(A)
Organism has to be killed
(B)
Height, weight and volume will change
(C)
Organism will move away, when weight is taken
(D)
Organisms grow during the measurement
Question-10
Actively dividing meristematic cells are converted to permanent cells by a process called:
(A)
Development
(B)
De -differentiation
(C)
Transformation
(D)
Differentiation
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
The Interdependence of Living Organisms
Feeding
Keeping Healthy
Transport in Plants
Classification
Cells and Tissues
Movement in and out of Cells
Personal Health
Animal Nutrition
Reproduction
Sensitivity
Cells the Building Blocks
Genetics
The Skeleton, Muscles and Movement
A Sexual Reproduction and Cloning Plants
The Senses
Survival
Co-ordination
Energy for Respiration
The Chemicals of Living Cells
How Substances Get In and Out of Cells
Plants for Food
Photosynthesis and Nutrition in Plants
Plant Structure and Function
Food and Diet
The Human Impact on the Environment
Digestion, Absorption and Use of Food
The Blood Circulatory System
Breathing
Excretion and the Kidneys
Human Reproduction
Classification
Conservation
Micro Organisms
Reproduction in Flowering Plants
Movement and Locomotion
Growth and Development
Disease: causes, transmission and control
Ecosystems
Population
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