Definition
Define Ecology
Ecology is the study of interactions between organisms and the living and nonliving components of their environment
What is Population dispersion?And what are the 3 dispersions?
-How individuals are spread in an area
Clumped,Uniform,Random
What is the Biosphere and what are some examples?
The Biosphere is the area around either where life exists
Example-Land,Water, and Air
What is the Competitive exclusion principle?
The Competitive exclusion principle states that no two species can occupy the same niche in the same habitat at the same time
What are the two factors that can affect an ecosystem and what are examples of each factor?
Biotic-all living things such as Trees,grass,animals
Abitoic-Nonliving factors-Such as soil,rock,air,water
Define Keystone Species
A keystone species is a species that has an unusually large effect on its ecosystem and form and maintains a complex web of life
How could population change in size?(4 main points)
Immigration-Movement of individuals into a population into another
Birth-Increase in population size
Emigration-Individuals leave/move out of a population
Death-Decrease population size
What is a group of organisms that can interbreed and produce fertile offspring called?
A Species
What is a symbiotic relationship in which one organism lives off the other(The host) and consequently harms the other organism? Give an Example of this relationship
Parasitism
Example- A tick feeding on a deer(the host) and possible infecting the deer
What is a single strand of Spaghetti called?
Spaghetto
Define trophic level and list the 3 levels
A trophic level is each step in a food chain or web
Primary->Secondary->Tertiary
An dramatically increase of a population is called?
Exponential growth
Define Community
A community is all the different populations that live in a defined area
Define Commensalism and give an Example
A symbiotic relationship in which one member benefits and the other is not affected
Example-Frogs uses the vermilaid plant to hide from the sun and rain, the frog uses the plant for protection and the plant is not affected
What type of succession would happen after a glacier has retreated?
Primary Succession
Define Niche
Range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions
What is Primary Succession and give an example
Succession that occurs on the surface, No soil exists after,bare rock left
Example-after a volcano eruption and lava cools
Define Ecosystem and give examples
True of False-Abiotic factors are part of an ecosystem
An Ecosystem is all the communities in a given area together with the abiotic factors (physical environment)Examples are lakes,forests
True
What is Mutualism? And give an Example
Mutualism is a relationship where both species benefit from the relationship
Example-Birds such as the Egyptian plover eat insect pests off of animals such as giraffes and benefits by feeding while the giraffe is benifted by the Egyptian plover eating pests off its skin
Would type of population dispersion would a classroom with rows of seats at a school be?
Uniform
Define Biodiversity
True of False-Biodiversity is important to the survival of an ecosystem
Biodiversity is the variety of living things in a ecosystem
True
Define Secondary Succession and give an example
Succession following a disturbance that destroys a community but leaves the soil
Example- A forest fire
What is a group of ecosystems with the same climate called? and what are some examples?
Biome
Examples are desert,tundra,Tropical forest,Mountains,Savanna and ect.
Define Symbiosis and name the 3 relationships
Symbiosis is any relationship in which two species live closely together
Mutualism,Commensalism,Parasitism
True or False, Earths atmosphere is almost 30% Nitrogen gas?