Invasive Species
Biology ⇒ Ecology and Environment
Invasive Species starts at 7 and continues till grade 12.
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See sample questions for grade 10
Describe how invasive species can affect ecosystem services.
Describe one method used to control invasive species populations.
Describe one way invasive species can be accidentally introduced to a new area.
Describe the difference between a native species and an invasive species.
Describe the role of public awareness in preventing the spread of invasive species.
Explain how invasive species can affect water quality in freshwater ecosystems.
A forest ecosystem is experiencing a decline in native bird species after the arrival of a new plant that produces toxic berries. What is a possible reason for this decline? (1) Birds are eating the toxic berries (2) Birds are migrating earlier (3) Birds are building more nests (4) Birds are increasing in number
A lake has recently seen a decline in native fish populations after the introduction of a new fish species. What is a likely explanation for this change? (1) The new fish is a predator (2) The new fish is a decomposer (3) The new fish is a pollinator (4) The new fish is a parasite
A forest ecosystem is experiencing a decline in native bird species after the arrival of a new plant that produces toxic berries. What is a possible reason for this decline? (1) Birds are eating the toxic berries (2) Birds are migrating earlier (3) Birds are building more nests (4) Birds are increasing in number
A lake has recently seen a decline in native fish populations after the introduction of a new fish species. What is a likely explanation for this change? (1) The new fish is a predator (2) The new fish is a decomposer (3) The new fish is a pollinator (4) The new fish is a parasite
Which of the following is a biological control method for managing invasive species? (1) Introducing natural predators (2) Using pesticides (3) Building fences (4) Draining wetlands
Which of the following is a common way invasive species are introduced to new environments? (1) Natural migration (2) Human activities (3) Evolution (4) Climate change
Fill in the blank: Invasive species can alter the ________ structure of an ecosystem, affecting food webs and nutrient cycles.
Fill in the blank: Invasive species can compete with native species for ________, such as food, water, and space.
Fill in the blank: Invasive species can disrupt ________ relationships, such as pollination and seed dispersal.
Fill in the blank: Invasive species can introduce new ________ to native populations, sometimes causing disease outbreaks.
True or False: All non-native species are considered invasive.
True or False: Invasive species always have a positive impact on the environment.
True or False: Invasive species can be both plants and animals.
True or False: Invasive species can cause extinction of native species.
