Ecosystem Basics
What is a biotic factor?
A living thing in an Ecosystem
What is more complex: A food chain or a Food Web
A Food Web
When two organisms both use the same limited resource this is called _______________
Competition
Do Invasive Species Increase or Decrease biodiversity in an ecosystem
Decrease
A group of 128 frogs lives together in a freshwater ecosystem. The group of frogs represents which role in the ecosystem?
a.) individual
b.) biome
C.) Community
d.) population
d.) Population
What is an Abiotic Factor?
A nonliving component of an ecosystem
What do plants release into the atmosphere?
Oxygen
A Coyote, a wolf, a lion and an eagle are all examples of
Predators
A common invasive species we learned about is Missouri was the ______________
Honey Suckle
Bees fly from flower to flower collecting nectar. As the bees land on a flower, some of the pollen sticks to the hairs on the bee’s body. At the next flower some of the pollen drops off. This relationship helps the bees get food and the plant gets pollinated. What type of relationship does this scenario describe?
Cooperation
list the hierarchy of living things from largest group to smallest group
biosphere, biome, ecosystem, communities, populations, individuals
What do Decomposers release into the Atmosphere
CO2
True or False: Organisms of different species can compete
True
Do Invasive species Increase or Decrease Ecosystem services? Why?
Decrease because they decrease Biodiversity.
True
How is an Ecosystem a System?
Ecosystems are considered systems because they are made of interdependent parts, and they have outputs, inputs, and a function
Organisms that get their energy from the sun are called _____________
Producers
Lets say coyotes eat mice and rabbits, Hawks also eat rabbits, but do not eat mice. What happens to the mouse population and the Hawk population if the coyotes go extinct or die off?
The mouse population will increase and the Hawk population will increase
How does too much fishing in an area affect its ecosystem?
The fish will lay many more eggs to replace the fish that were caught.
The population sizes of the organisms that eat the fish would likely decline.
Organisms that the fish eat will become endangered.
People could eat too many fish and become ill.
The population sizes of the organisms that eat the fish would likely decline.
Organisms that get their energy by eating producers are called _____________________
Consumers/Primary Consumers