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WorksheetsEcology practice part 1
Total questions: 35
Worksheet time: 36mins
Form of pollution in which high-level consumers accumulate large concentrations of harmful substances is called:
Biomagnification
Invasive Species
Extinction
Habitat Fragmentation
The disappearance of all members of a species from Earth
Biodiversity
Keystone species
Extinction
Invasive species
The number and variety of different species in an area
Biodiversity
Keystone species
Extinction
Invasive species
A species that does not belong in a balanced ecosystem, comes in, and changes it (usually for the worse).
flagnship
umbrella
invasive
predator
A species that plays a critical role in the health, maintenance, growth, or definition of an ecosystem.
keystone
invasive
engineer
predator
In this energy pyramid, which organisms have the most energy available?
Producers
Carnivores
Herbivores
Top Predator
What will most likely happen to the hawks and rodents if the insects were removed?
There will be more hawks and rodents
The rodents will eat more hawks
There will be fewer rodents and hawks
The hawks will eat more rodents
A diagram of a marine food chain
is provided. Which of the organisms
in the food chain transforms energy
from the Sun into food?
Large Sharks
Marlin
Shrimp
Phytoplankton
Based on the Food Web, which of these statements is true?
The shark is a producer
The octopus is a primary consumer
The limpet is a secondary consumer
The zooplankton is a primary consumer
In a freshwater ecosystem, ducks and snails eat grass and algae. The snails are eaten by mice and ducks. A fox will eat mice, but also ducks.
From this description, what would be an example Food Chain?
Fox --> Snail --> Duck --> Mouse
Algae --> Snail --> Mouse --> Fox
Algae --> Duck --> Mouse --> Fox
Snail --> Mouse --> Fox --> Duck
What is the MAIN way most energy is lost in a food chain?
Heat
Respiration
Waste
Growth
What do you call organisms that eat ONLY other consumers?
Carnivores
Herbivores
Omnivores
Detritivores
What do you call organisms that break down and recycle matter back into the ecosystem?
Carnivores
Herbivores
Omnivores
Detritivores
Which of the following are ways that humans could negatively impact this ecosystem?
By introducing invasive species.
By removing the producers (ex., deforestation, building on the land)
By removing consumers (ex., overhunting)
By conserving the natural habitat
Which organisms in this food web are tertiary consumers (3rd level)? (Look/click on the picture of the chart!)
lion, grass, and shrub
vulture, coyote, and bobcat
shrub, deer, bobcat
blue jay, grasshopper, and seeds/treenuts
Which organism in this food web can be a part of two different trophic levels? (Look closely/click on the picture of the food web!)
the grass that is both a producer and a consumer making it an omnivore
the Blue Jay bird because it eats seeds (making it a primary consumer) and also eats worms grasshoppers (making it a secondary consumer)
A decomposer (a worm) that is also a producer that likes to produce other plants (making it a producer)
The coyote because it consumes squirrels and ground hogs making it a carnivore
What would be two consequence to the food web if the groundhog population dropped severely due to habitat destruction? (Look closely/click on the picture of the food web!)
Increased plant population due to fewer groundhogs eating them.
Decrease in predator population that relies on groundhogs for food (coyotes, bobcats & vultures).
No significant impact on the food web.
Increase in the population of other herbivores that are part of the ecosystem.
List at least three limiting factors that would negatively affect the squirrel population. (Look/click on the food web!)
amount of seeds/treenuts available
amount of coyotes
amount of bobcats
weather change in another ecosystem
How does commensalism differ from mutualism?
In commensalism, both organisms are harmed, while in mutualism, both benefit.
In commensalism, one organism benefits and the other is unaffected, while in mutualism, both organisms benefit.
In commensalism, one organism is harmed and the other benefits, while in mutualism, both are unaffected.
There is no difference; they are terms used interchangeably.
Golden jackals follow tigers to feed on the remains of their kills. What type of symbiotic relationship is this?
Mutualism
Parasitism
Commensalism
Competition
A relationship between two species is called ______________.
Speciation
Antagonism
Partnership
Symbiosis
