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Question-1
The plant hormone seen in the germinating seeds, stem tips, root tips, leaves and leaf buds is:
(A)
Auxin
(B)
Ethylene
(C)
Abscissic acid
(D)
Cytokinin
Question-2
Woodlice prevents water loss by the response it shows towards:
(A)
Light
(B)
Gravity
(C)
Humidity
(D)
Temperature
Question-3
Name the tropic movement shown by climbers.
(A)
Haptotropism
(B)
Chemitropism
(C)
Hydrotropism
(D)
Geotropism
Question-4
The sensitive part of gerbils that receives stimuli caused by the air movement are the:
(A)
Nostrils
(B)
Whiskers
(C)
Fur
(D)
Ears
Question-5
Name the tropic movement shown by pollen grains to reach the ovary.
(A)
Hydrotropism
(B)
Phototropism
(C)
Chemotropism
(D)
Geotropism
Question-6
Which tropic response brings the flowers into an exposed position?
(A)
Negative phototropism
(B)
Positive phototropism
(C)
Negative hydrotropism
(D)
Positive hydrotropism
Question-7
Non - directional responses are also known as:
(A)
Tropic movements
(B)
Taxis
(C)
Stimuli
(D)
Negative tropism
Question-8
Response of an organ towards gravity is called as:
(A)
Geotropism
(B)
Gravitropism
(C)
Both a and b
(D)
Phototropism
Question-9
Find the growth inhibitors from the following.
(A)
Auxin
(B)
Ethylene
(C)
Abscisic acid
(D)
Both b and c
Question-10
Long ears of which organism helps it to pick up sound vibrations?
(A)
Hare
(B)
Long - eared bat
(C)
Tiny owl
(D)
Gerbil
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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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