Ecosystems review Flashcards
Revie Ecosystems for test!!
What happens last in succession of an ecosystem?
mature community of plant & animal populations is established
What human activity affects biodiversity and how?
cutting down trees puts more carbon dioxide in the air
How can human activities affect different populations in an ecosystem differently?
oil spill which severely affected the herring population but the eagles are ok
What is another human activity that affects biodiversity?
introducing non native species which will compete with native species
What is a third way that human activity can affect biodiversity?
putting more carbon dioxide in the air increases temperature & warms oceans
What’s primary succession?
pioneer species, no soil, lichens dissolve rock into soil
What’s secondary succession?
natural disruptions, soil is present, occurs rapidly
Which determines if an ecosystem is healthy?
number of organisms
What else shows if an ecosystem is healthy?
variety of organisms
Bioremediation is a technique that uses microorganisms to break down pollutants. It is a form of conversation called…..
ecological restoration
What types of Ecosystems services are seen in an image of a tree on a rainy day?
water, soil, gases
What’s a reason that an animal can become endangered?
low genetic diversity
loss of habitat
environmental changes
What is the difference between the 2 types of extinction?
mass extinction is quickly for all species, background is slow for one kind
Fungi benefits from food produced by algae. Algae benefits from nutrients & water from fungi. Which is most similar…?
mutualism between fungi and ants
How are predation & parasitism similar?
only 1 organism in each relationship benefits
