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Question-1
Which of the following does not contribute to the species diversity of the tropics?
(A)
Predictability
(B)
Predation
(C)
Species homogeneity
(D)
High productivity
Question-2
The kind of place to which a species is biologically adapted to live is its:
(A)
Optimum
(B)
Niche
(C)
Habitat
(D)
Zone of stress
Question-3
The term "detritivore" includes:
(A)
Decomposers
(B)
Primary consumers
(C)
Secondary consumers
(D)
Autotrophs
Question-4
A biomass pyramid is important because it illustrates:
(A)
The biomass of all organisms at each trophic level in a system
(B)
How energy flows through a food web
(C)
The number of species in each trophic level
(D)
The number of trophic levels in a system
Question-5
The major reservoir for phosphorus.
(A)
Aquifers
(B)
Soil and rocks
(C)
The atmosphere
(D)
The sun
Question-6
The first trophic level refers to:
(A)
all animals
(B)
all herbivores
(C)
sunlight
(D)
all green plants
Question-7
The accumulation of herbivore biomass in an ecosystem is an example of:
(A)
Bio geochemical cycles
(B)
Transpiration
(C)
Net primary productivity
(D)
Secondary productivity
Question-8
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-9
The climate of a given region is:
(A)
The average temperature and precipitation conditions
(B)
Its weather
(C)
Average temperature and precipitation conditions for every day of the year in a given region
(D)
Its weather patterns
Question-10
In most species, as K+ moves in or out of the guard cell to regulate the stomatal opening, there is movement in the opposite direction by:
(A)
Na+
(B)
H+
(C)
OH-
(D)
Cl-
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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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