Ecosystems
What is the term for two species interacting when both benefit from the interaction?
Mutualsim
What number mass extincition are we currently in?
6th
Name the 4 main reasons that biodiversity is decreasing due to human activity
overharvesting, pollution, habitat loss, invasive species
What is so important about a keystone species?
When a key stone species has been eradicated, biodiversity in the rest of the ecosystem decreases.
What is the term for two species interacting when one organism benefits and the other one is harmed?
Parasitism
Briefly explain 1 article of the list of extinction articles we read as a class.
Ms. Dhak will check your answer.
Draw a diagram showing the process of habitat loss
Ms. Dhak will draw the answer on the board.
What parts of the world have the most biodiversity?
Near the equator and tropical rainforests.
A bird makes a nest in a tree out of dead branches from other trees in the forest. What type of interaction is this?
Commensalism
What is the difference between endangered and threatened?
endangered: at serious risk of becoming extinct
threatened: close to becoming endangered
Complete the sentence:
Invasive species can ______________ native species, causing the native species to not get any resources.
outcompete
What parts of Canada have the most biodiversity?
Indigenous managed lands
Explain what a niche is.
A niche is a special role an organism has in its ecosystem. Niches reduces the competition for resources.
Name a species that have been driven to extinction or close to extinction due to overharvesting.
Siberian tigers, elephants, salmon
In the arctic and other parts of the world, the weather is changing and becoming to extreme or too warm for some species to survive there. What phenomenon is this caused by?
Climate Change
Name the 3 levels of biodiversity.
genetic, species, ecosystems