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Question-1
Which tropic response lifts the leaves and flowers above the ground?
(A)
Negative phototropism
(B)
Negative geotropism
(C)
Positive geotropism
(D)
Positive hydrotropism
Question-2
Name the tropic movement shown by pollen grains to reach the ovary.
(A)
Hydrotropism
(B)
Phototropism
(C)
Chemotropism
(D)
Geotropism
Question-3
The sensitive part of gerbils that receives stimuli caused by the air movement are the:
(A)
Nostrils
(B)
Whiskers
(C)
Fur
(D)
Ears
Question-4
Long ears of which organism helps it to pick up sound vibrations?
(A)
Hare
(B)
Long - eared bat
(C)
Tiny owl
(D)
Gerbil
Question-5
Name the tropic movement shown by climbers.
(A)
Haptotropism
(B)
Chemitropism
(C)
Hydrotropism
(D)
Geotropism
Question-6
Which plant organ is negatively geotropic?
(A)
Shoot
(B)
Root
(C)
Leaf
(D)
Flower
Question-7
Response of an organ towards gravity is called as:
(A)
Geotropism
(B)
Gravitropism
(C)
Both a and b
(D)
Phototropism
Question-8
Which organ helps the snake to detect smell?
(A)
Jacobson's organ
(B)
Eye - spot
(C)
Nerve net
(D)
Nostrils
Question-9
What type of movement is shown by lateral roots?
(A)
Geotropism
(B)
Phototropism
(C)
Diageotropism
(D)
Taxis
Question-10
Find the growth inhibitors from the following.
(A)
Auxin
(B)
Ethylene
(C)
Abscisic acid
(D)
Both b and c
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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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