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Question-1
The upright pyramid of number is absent in:
(A)
Lake
(B)
Grassland
(C)
Pond
(D)
Forest
Question-2
Which of the following is NOT an outcome of high population density?
(A)
Toxic waste accumulation
(B)
Mortality increase
(C)
Predators tend to ignore prey that it overabundant
(D)
Reproduction reduction
Question-3
Which of the following species would you be most likely to find in the chaparral habitat?
(A)
Panthera Tigris
(B)
Geospiza conirostris
(C)
Quercis dumosa
(D)
Lactuca graminifolia
Question-4
The major benefit of the greater Yellowstone Ecosystem Management Plan is:
(A)
Creation of large regions of wilderness for animals such as bison and grizzly
(B)
The increase of cattle grazing on park land
(C)
The increase of mining and old-growth logging on park land
(D)
All of the above
Question-5
Which one of the following is NOT a functional unit of an ecosystem?
(A)
Productivity
(B)
Stratification
(C)
Energy flow
(D)
Decomposition
Question-6
Organisms whose life history adaptation is called semelparity:
(A)
Produce young only late in life
(B)
Produce a large batch of young and die
(C)
Produce young over most of their life
(D)
Produce a single offspring near the end of their reproductive potential
Question-7
Growth rate is:
(A)
The change in the number of organisms
(B)
The average rate of change in the number of organisms per time
(C)
The average rate of change in the number of organisms per time per organisms
(D)
Growth rate multiplied by hundred
Question-8
A meta population is:
(A)
Random
(B)
Uniform
(C)
Clumped
(D)
Cluttered
Question-9
Late successional plants:
(A)
Are shade intolerant
(B)
Require soil rich in all nutrients
(C)
Are called "climax species"
(D)
Grow rapidly
Question-10
An ecosystem is:
(A)
The transition zone between grassland and desert
(B)
A group of interactive species and their environment
(C)
A body of freshwater
(D)
The lowland area on either side of a river
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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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