Vocabulary
What is the definition of carrying capacity?
The maximum number of organisms in a population that an ecosystem can sustain.
What happens to a population of organisms if there isn’t enough food?
It will go down
What kind of limiting factor is a drought?
abiotic (Changing conditions)
What kind of limiting factor are predators?
biotic
What were the limiting factors in Investigation 3.2?
food, water, space
What is the definition of population?
The number of organisms in a species in one area
What happens to a population when it reaches its carrying capacity?
It will stop growing and stay the same.
Why is the sun important to plants?
They need it for photosynthesis
What causes competition within a population?
Scarcity (not enough) of resources
What resources are required for all plants?
Sun, Water, Air, Minerals, Space
What is the definition of limiting factors?
something that keeps the population from growing too large
When a population is below the carrying capacity, what usually happens to the population?
It will grow until it hits the carrying capacity
True or false: Plants compete for resources
True!
What is it called when 2 animals need the same food source?
competition for food
What resources are required for all living things that are not plants?
Food, water, Space, Shelter, Air
What does Biotic mean?
Living or once-living
How do limiting factors affect populations?
They keep them from growing too large.
List the changing conditions that are limiting factors
Volcanic eruptions, flood, earthquake, drought
What human activities destroy animals habitats?
development, damming rivers, clear cutting forests
Fill in the blank:
All biotic and abiotic factors are __________________. If one factor changes, it impacts the availability of other resources.
interrelated
What does abiotic mean?
What will organism be forced to do when an exosystem runs out of resources?
They will have to move or they will die.
List the abiotic limiting factors
Sun, Temperature, Water, Minerals/Soil Quality, Changing conditions
Competition for food, predator/prey relationships, parasitism, disease, humans
Fill in the blank:
All investigations begin with a _______________
Question!