WorksheetsReview Game: IB ESS Topic 2.1 & 2.2
Total questions: 25
Worksheet time: 23mins
At which trophic level can you find an herbivore?
1st Level
2nd Level
3rd Level
4th Level
Choose all abiotic factors of an environment
temperature
sunlight
parasites
primary producers
wind
A population is defined as
the individuals of a species
a group of organisms in an ecological community
the individuals of a species close enough in time and space to interact
organisms in an ecological community close enough in time and space to interact
A fundamental niche is
all conditions in which a species could survive
the actual conditions in which a species survives
trophic level, i.e. primary producer, secondary consumer, etc.
the number of individuals an environment can support sustainably
A species' realized niche can be different from its fundamental niche due to -
abiotic factors of the environment like sunlight
interspecific interactions like competition and predation
population fluctuating around an equilibrium level
carrying capacity of the environment changing over time
Carrying capacity of a habitat is determined by
population growth rate
limiting factors
j versus s type population growth
r and k survival strategies
In the sea, little fish called pilot fish swim closely to sharks. The pilot fish clean the sharks, and the sharks provide protection for the pilot fish. What type of symbiosis is this?
Mutualism
Commensalism
Parasitism
Amensalism
What is this picture describing?
It is describing how two organisms cannot occupy the same niche in the same place at the same time through the competitive exclusion principle.
It is illustrating the intercompetitive inclusion principle.
It is describing the amount of time it takes for bacteria to reach exponential growth.
It is illustrating the mutualistic relationship between two organisms when they live in the same niche.
The sum total of a population's use of the biotic and abiotic resources of its habitat constitutes its
evolution.
range.
niche.
environment.
In a hypothetical food chain (grass --> grasshoppers --> sparrows --> hawks) the grasshoppers are considered .... (Choose 2 answers)
primary producers.
secondary producers.
primary consumers.
secondary consumers.
herbivores
Which of the following statements regarding food webs is true?
Several species of primary consumers may feed on the same species of producer.
A consumer eats only one type of producer.
Detritivores consume dead organic matter from a specific trophic level.
Nutrient transfer moves from producer to consumer and back.
A model including a number of interlinked food chains is a -
Food web
Ecosystem
Biomass Pyramid
Pyramid of Numbers
Producer, primary consumer or secondary consumer indicate an organism’s position in a food chain. What is another word for these levels?
Consumption levels
Niches
Trophic levels
Productivity
Which law of thermodynamics explains the shape of an ecological pyramid of energy?
1st law
2nd law
3rd law
Select the inputs to photosynthesis.
CO2
H2O
Glucose
O2
Sunlight
Aerobic respiration is the process of release and transfer of energy inside all living cells at all times. What are the outputs of this process?
CO2
O2
H2O
Energy (ATP)
Glucose
Classify the organism based on how it acquires energy for living.
Autotroph
Heterotroph
Producer
Consumer
True or False? The length of food chains is restricted because the amount of sunlight entering the ecosystem is limited.
True
False
Density-dependent factors, such as contagious disease or parasites, act as a ____________ feedback mechanism by bringing the population size back to equilibrium.
Positive
Negative
Neutral
Which of these is NOT an example of interspecific competition?
Oysters and barnacles competing for settling space on the rocky shore
Goats and sheep in the same paddock competing for grass
Ferns and kawakawa competing for shaded locations in a forest
Stags competing for mates
