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Question-1
What type of chemical energy is stored in a plant?
(A)
Kinetic
(B)
Nuclear
(C)
Solar
(D)
Potential
Question-2
The kind of place to which a species is biologically adapted to live.
(A)
Optimum
(B)
Niche
(C)
Habitat
(D)
Zone of stress
Question-3
Which of the following chemicals enters living organisms primarily from the atmosphere rather than from rocks or soil?
(A)
Calcium
(B)
Sulfur
(C)
Sodium
(D)
Carbon
Question-4
Which macronutrient is important to the operation of stomata?
(A)
Magnesium
(B)
Manganese
(C)
Sulfur
(D)
Potassium
Question-5
Approximately what percent of the water absorbed by a plant is lost to the atmosphere?
(A)
1-5%
(B)
10-20%
(C)
25%
(D)
Over 90%
Question-6
The first trophic level refers to:
(A)
all animals
(B)
all herbivores
(C)
sunlight.
(D)
all green plants
Question-7
Nitrogen gas accounts for what percentage of the atmosphere?
(A)
0.03%
(B)
1%
(C)
Approximately 50%
(D)
78%
Question-8
The accumulation of herbivore biomass in an ecosystem is an example of:
(A)
Biogeochemical cycles
(B)
Transpiration
(C)
Net primary productivity
(D)
Secondary productivity
Question-9
Which of the following is a secondary consumer?
(A)
A carnivore
(B)
A herbivore
(C)
A plant
(D)
All of the above
Question-10
Elements such as calcium, potassium, and phosphorus, needed by the plant in fairly large amounts are called:
(A)
Fertilizers
(B)
Coenzymes
(C)
Macronutrients
(D)
Enzyme activators
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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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