For this unit, you should be able to:
1.
2.
3.
4.
5.
6.
Describe how living things interact on several levels of
organization: organism, population, community, ecosystem,
and biosphere.
Describe the role of organisms as producers, consumers,
herbivores, carnivores, or decomposers in an ecosystem. Give
examples of each.
Describe how predators and prey control each other’s
population.
Define symbiosis and describe three types of symbiotic
relationships: mutualism, commensalism, and parasitism.
Give examples.
Describe how biotic and abiotic factors can influence an
ecosystem.
Describe a simple food chain or food web using the words
producer, consumer (primary, secondary and tertiary) and
trophic level.
For this unit, you should be able to:
7. Describe how energy flows through ecosystems with
reference to the pyramid of energy, pyramid of numbers
and pyramid of biomass.
8. Describe several abiotic factors that influence the
distribution of living things.
9. List and describe characteristics of each of the eight
different biomes you studied. Provide characteristic
plants and animals.
10. Describe how organisms become adapted to the
environment using vocabulary such as mutation, adaptation
and natural selection.
11. Provide examples of different adaptations that predator
and prey species may have to help them survive.
For this unit, you should be able to:
12. Describe the role of biodiversity in stabilizing an
ecosystem.
13. Define keystone species and give an example.
14. Define how competition can occur between species and
within species in a community and what may result.
15. Describe how resource partitioning can lead to adaptive
radiation.
16. Provide examples of foreign species and possible impacts
of their introduction into an ecosystem.
17. Distinguish between primary and secondary succession ,
and describe the role of pioneer species in succession
In a food web, how much energy is
transferred to the next trophic level?
Energy is lost to life processes such as
reproduction, as well as heat
Which of the following organisms is
a decomposer?
Vulture
Fungus
Dung Beetle
Lichen
None of the Above
An ecologist wants to gather information
about a stream along a mountainside. Which
of the following is a biotic factor?
water temperature
variety of life forms
mineral deposits
water flow rate
None of the above
What relationship exists between
the bee and the flower?
mutualism
commensalism
parasitism
consumerism
predation
Which of the five biomes would have
the greatest rate of photosynthesis?
Tropical Rainforest
Boreal Forest
Temperate Rainforest
Desert
Polar Ice
Which of the following characteristics
would describe the biome shown in the
picture below?
small amounts of rainfall
many deciduous trees
long, hot winters
a lot of precipitation
permafrost
Consider the following climatograph which shows
monthly precipitation and temperatures for the town
of Tofino. What is the average temperature of Tofino
during the month of May?
15°C
−18°C
10°C
25°C
None of the above
Which of the following type of
relationships does the organism
pictured below participate in?
Mutualism
Commensalism
Parasitism
Predation
None of the above
The picture below illustrates what
type of relationship?
Predation
Parasitism
Commensalism
Mutualism
None of the above
Organisms that feed on fecal matter
and other organic waste would best be
described as
carnivores
detrivores
herbivores
producers
decomposers
Which of the following species is most
likely to occupy the second trophic level
in an ecosystem?
apple-eating insect
apple
bird-eating cat
insect-eating bird
None of above
Which of the following characteristics
distinguishes decomposers from other
consumers?
The ability to chemically break down organic compounds
Their position within a grazing food chain
The ability to produce food
The tendency to gain nutrition from dead organisms
None of the above
Which of the following describes
detrivores?
organisms that photosynthesize
organisms that are parasites
organisms that feed on producers
organisms that feed on plant and animal remains
None of the above
In which of the following biomes would
the removal of a species have the
greatest impact?
tundra
boreal forest
tropical rainforest
grassland
temperate rainforest
In which of the following situations
would primary succession occur?
after a forest fire
on bare rock
after the logging of a climax forest
after a flood
None of the above
Which of the following is most likely to
lead to a decrease in species diversity?
extinction
biodegradation
adaptive radiation
species proliferation
None of the above
Which of the following would not
be considered a primary consumer?
deer
rabbit
orca
cow
dik dik
What level of organization would a
flock of geese be classified as?
population
community
organism
ecosystem
biosphere
A symbiotic relationship in which
both partners benefit is called
mutualism
parasitism
commensalism
consumerism
None of the above
Which of the following is
considered a biotic factor?
water
parasites
sunlight
wind
temperature
In the food web below, which of the
following organisms is an omnivore?
chipmunk
grizzly bear
red-tailed hawk
marmot
deer
Which of the following is more
likely to be a predator adaptation?
being able to travel at high speed
displaying warning colouration
mimicry
being poisonous
None of the above
In the picture below, one of the frog
species is harmless, while the other two
are highly toxic. What is this an example
of?
This picture illustrates what
process?
Proliferation
Adaptive radiation
Extirpation
Extinction
None of the above
The process that favours the survival of organisms with
traits that make better adapted to the environment is
known as
___________________.
What advantage do food webs have over
food chains?
Which of the following is a
characteristic of the tundra biome?
permafrost layer
deciduous forests
high plant growth
annual rainfall in excess of 120 cm per year
None of the above
What biome does not support
herbivores?
Tropical rainforest
Desert
Tundra
Polar ice
None of the above