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WorksheetsBiodiversity & Energy Flow in an Ecosystem
Total questions: 33
Worksheet time: 20mins
Which of the following vocabulary words can be used to describe the grass in this food chain?
heterotroph, primary consumer
autotroph, producer
decomposer, secondary consumer
primary consumer, autotroph
Which of the following vocabulary words can be used to describe the frog in this food chain?
secondary consumer, heterotroph
heterotroph, tertiary consumer
autotroph, secondary consumer
decomposer, heterotroph
Fungi and bacteria would play which of these roles in a food web?
producer
heterotroph
autotroph
decomposer
A species on which other species in an ecosystem largely depend, and if it were removed, the ecosystem would change drastically.
endangered species
keystone species
primary species
apex species
How much energy is passed on to the next trophic level in an energy pyramid?
5%
1%
100%
10%
If the grass in this example had 10,000 Kcal of energy, about how much of that energy would be stored in trophic level 3?
100 Kcal
100,000 Kcal
10 Kcal
1,000 Kcal
What does the arrow actually represent in a food web or food chain?
Who is being eaten
Who is eating
The flow of energy
the direction of food
Why is it better to have more biodiversity in an ecosystem?
because biodiversity can help make ecosystems more sustainable
because biodiversity provides more energy
because biodiversity provides less energy
because it gives us more animals for the zoo
If a disease eliminated the snake population, which population would immediately DECREASE?
hawk
frog
grasshoppers
grass
If the bird population DECREASED, which populations would INCREASE as a result?
bees and deer
bees and grasshoppers
snakes and hawks
grasshoppers and rabbits
A ___ is an organism that makes its own food.
A ___ is an organism that eats other organisms to gain energy.
A ___ is an organism that breaks down dead organisms to gain energy.
producer, consumer, decomposer
producer, decomposer, consumer
consumer, producer, decomposer
decomposer, producer, consumer
Species that are clearly critical to the functioning of an ecosystem are known as
biodiversity
keystone species
main species
native species
A ___ is an animal that only eats plants.
A ___ is an animal that only eats other animals.
herbivore, carnivore
carnivore, herbivore
omnivore, detritivore
detritivore, omnivore
When a population nears its carrying capacity, resources become limited. Population growth slows and ______.
the death rate and birth rate increase
deaths outnumber births
the birth rate increases at a fast rate
the birth rate and death rate are equal
A(n) _____ is an animal that eats both plants and animals.
A(n) _____ is an animal that eats dead plants and animals.
detritivore, omnivore
omnivore, detritivore
carnivore, herbivore
herbivore, carnivore
Which ecosystem is more likely to survive a change in the environment?
One with High biodiversity
One with Low biodiversity
Which is an apex predator in this food web? (Hint: pay close attention to the arrows!)
squid
penguin
seal
krill
The blue line on the graph shows the rabbit population, and the red line shows the wolf population. Which statement about the graph is true?
When the wolf population begins to increase, the rabbit population begins to decrease.
When the rabbit population is at its lowest, the wolf population is also at its lowest.
When the rabbit population is at its highest, the wolf population is also at its highest.
When the wolf population begins to increase, the rabbit population also begins to increase.
Abiotic is non-living
Biodiversity, aka biological diversity, usually refers to
the same species in a general location
the number of different species in a given area
the number of animal species in a given area
the number of plant species in a given area
Which do you think has a higher species diversity biodiversity, a food chain or a food web?
Food Chain
Food Web
Why is biodiversity in an ecosystem so important?
Because it can help humans where to determine good places to develop farm land.
Because places that have a healthy biodiversity are unaffected by major disturbances.
Because having a high biodiversity allows ecosystems to withstand major changes.
Because having a high biodiversity allows for fewer opportunities of competition for similar resources.
What is another term for traits that a species helps them survive major changes in an ecosystem?
Resiliency
Adaptation
Disturbances
None of the above
In this aquatic food web, which organisms eat the squid?
It has no predators
seagull and krill
seal and krill
seal and seagull
Which of the following terms describes any major changes that may occur to an ecosystem?
Distubance
Resiliency
Adaptations
Biodiversity
A group of individuals of one species that occupies a particular geographic area
community
population
organism
biodiversity
Which of the following biomes supports the greatest variety of organisms?
A.
B.
C.
D.
Which one of the locations indicated is most likely to have the greatest biodiversity and ability to sustain the ecosystems located within the biome?
Q
R
S
T
A forest is most sustainable when it has –
tall trees only.
small shrubs only.
flowering plants only.
a variety of plant species.
