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Chap. 13

Section 13.2

QuestionAnswer
All Ecosystems are made up of what two components? Living and Nonliving components
These two parts are referred to as what? Biotic and Abiotic
Define Biotic living things, such as plants, animals, fungi and bacteria.
Define Abiotic Non living factor in an ecosystem such as moisture, temperature, wind, sunlight, soil
True or False- an ecosystem is always undergoing some changes True
What is the assortment or variety of living things in an ecosystem called? Biodiversity
True or False- Changing one factor in an ecosystem can affect many other factors? True
What is it called when cyclical changes occur and the ecosystem falls into a balance? approximate equlibrium
Why is a Tropical Rain Forest referred to as a hot spot? Because it is an area rich in biodiversity but threatened by human activities.
What is a species that has an unusually large effect on an ecosystem called? Keystone species
What is one example of a keystone species and why? A beaver- by felling trees to construct dams, they change the free flowing streams into ponds.- See pg. 404.
Created by: Kelly Arledge
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