NEW
Font size
WorksheetsIB Biology Quiz Ecology part 1: 4.1, 4.2, 4.3, C.1
Total questions: 15
Worksheet time: 8mins
The image shows a transect through a stream and a field.
Which calculation would test for the association between two species of plants from quadrat data from section A and section B of the field?
Correlation coefficient
Random numbers sampling
Standard deviation
Chi-squared
What is the classification of an organism that is able to make organic compounds from inorganic nutrients?
Autotroph
Consumer
Detritivore
Saprotroph
Which are characteristics of a species?
I. The potential to interbreed to produce fertile offspring
II. The formation of a population with members of the same species within a community
III. The overproduction of offspring
I and II only
I and III only
II and III only
I, II and III
The image shows an Arctic food web.
What is the role of the Arctic hare?
Detritivore
Primary consumer
Secondary consumer
Saprotroph
Which of the following ecological units includes abiotic factors?
A community
An ecosystem
A population
A trophic level
The fungus Calocera viscosa obtains its nutrients from decaying conifer trees. Which pair of terms describes C. viscosa’s nutrition?
A
B
C
D
Distinguish between fundamental niches and realized niches.
Fundamental niche involves only feeding; realized niche involves all behavior.
Fundamental niche is the potential mode of existence; realized niche is the actual mode of existence.
Fundamental niche is the habitat; realized niche is feeding patterns.
Fundamental niche describes a community; realized niche describes an ecosystem.
The food web below shows some of the feeding relationships found between the organisms living in or near a river in England.
Identify an organism in the food web that is an autotroph.
Mayfly
Diatoms and other algae
Leech
River limpet
Label level X of the trophic pyramid of energy shown below.
primary producer
primary consumer
secondary consumer
tertiary consumer
Which group of organisms in the carbon cycle converts carbon into a form that is available to primary consumers?
Decomposers
Saprotrophs
Detritus feeders
Producers
The diagram below shows some of the links in the carbon cycle.
What processes are taking place at I, II and III?
photosynthesis, fossilization, combustion
cell respiration, fossilization, greenhouse effect
photosynthesis, decomposition, combustion
cell respiration, decomposition, greenhouse effect
A species that exhibits a strong control over the structure of a community is a
native specie
mutualist species
parasitic species
keystone species
The distribution of species depends on things like light, water, temperature, soil conditions, and interactions between organisms. These are called
limiting factors
zone of intolerance
optimal range
communities
Rabbits eating grass is an example of
predation
parasitism
herbivory
mutualsim
The idea that no two species can occupy the same niche is the principle of
intraspecific competition
competitive exclusion
interspecific competition
limiting factors
