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Question-1
Regular dispersion is:
(A)
Individuals are more or less spaced at equal distance from one another
(B)
Individuals aggregated into patches interspersed with no or few individuals
(C)
The position of one individual is unrelated with the position of its neighbours
(D)
Spatial pattern of individuals in a population relative to one another
Question-2
Which dispersion pattern is most common in nature?
(A)
Randomly spaced
(B)
Uniformly spaced
(C)
Clumped
(D)
All are equally common
Question-3
Which one of the following is NOT a functional unit of an ecosystem?
(A)
Productivity
(B)
Stratification
(C)
Energy flow
(D)
Decomposition
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
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-6
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-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
Which species is the most tolerant of harsh environmental conditions?
(A)
Weeds
(B)
White pine
(C)
Sugar maple
(D)
Beech
Question-9
The upright pyramid of number is absent in:
(A)
Lake
(B)
Grassland
(C)
Pond
(D)
Forest
Question-10
What type of effect has an increasing impact as the population size increases?
(A)
Density - independent effect
(B)
Cohort effect
(C)
Survivor ship effect
(D)
Density - dependent effect
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Cambridge Secondary Grade 10
IGCSE
Practice in Related Chapters
Feeding
Cells and Tissues
Ecosystems
Population
Transport in Plants
The Chemicals of Living Cells
Sensitivity
Energy For Respiration
How Substances Get In and Out of Cells
Photosynthesis and Nutrition in Plants
Plant Structure and Function
Food and Diet
The Interdependence of Living Organisms
The Human Impact on the Environment
The Blood Circulatory System
Digestion, Absorption and Use of Food
Breathing
Excretion and the Kidneys
Human Reproduction
Reproduction
Classification
Conservation
Micro Organisms
Reproduction in Flowering Plants
Movement and Locomotion
Growth and Development
A Sexual Reproduction and Cloning Plants
The Skeleton, Muscles and Movement
The Senses
Co-ordination
Personal Health
Disease: cause, transmission and control
Genetics
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