Limit this ecosystem
The maximum amount of species in a population that an area/environment can hold.
What is carrying capacity?
An abiotic factor in which many organisms live, interact, gain nutrients, and minerals.
What is soil?
This is the number added to a population by movement.
What is immigration?
This is the form of symbiosis in which both species benefit?
What is mutualism?
Plants are at this trophic level.
1st trophic level (producers)
Humans have killed off the natural predators of deer. This is what has happened to the deer population because of this.
What is increased deer population?
These 3 soil sizes are ordered from greatest to least.
What are sand, silt, and clay?
When the birth rate is higher than the death rate in a population.
What is increase?
When barnacles attach to whales in order to gain a ride to food, and whales are not effected by this interaction then this form of symbiosis is known as ____________.
What is Commensalism?
Animals that eat both plants and animals.
What are omnivores?
Biotic or abiotic factors in an environment that restrict the number of individuals in an environment.
What are limiting factors?
This is how freely water flows through the soil
What is permeability?
This population factor is defined as organisms moving away from an area.
What is emigration?
This form of symbiosis includes a species that benefits and a species that is harmed.
What is Parasitism?
Green plants use it's energy to make food
What is the sun?
A predator's population will _____ when the prey population rises.
What is rise?
Is the decaying organic material in soil.
What is humus?
If 800 rabbits die in one year and in the same year 600 rabbits are born, then will the population _____________.
What is decrease?
This is the term for an organism that hunts and kills another organism for food.
What is predator?
Below is an example of a ______.
Tree leaf -> caterpillar -> frog -> water snake
What is a food chain?
The three of four limiting factors that affect an organism's success in an ecosystem.
What are food, water, shelter (and space)?
Name the horizons or layers from top to bottom and their composition
What are topsoil, subsoil, parent material and bedrock?
These are the four factors that can change population size.
What is birth rate, death rate, immigration, emigration?
This occurs when two organisms are attempting to use the same resource.
What is competition?
When looking at an energy pyramid, this is the amount of energy that is LOST from one trophic level to the next.
What is 90%?