Food webs/chains
What way does the arrows go in a food chain?
Right
define population
A population is a group of similar individuals, usually of a given species occupying a particular habitat at a particular time
The act of one organism killing another for food EX: grizzly bear and salmon
Predation
What is an example of a biotic factor?
Food availability
What are energy pyramids?
An energy pyramid is a graphical representation, showing the flow of energy at each trophic level in an ecosystem
What does a omnivore eat?
Plants and Meat
What is a community?
different species living together and sharing the same habitat in a given area
What are the 4 types of symbiotic relationships?
Predation, parasitism, mutualism, Commensalism
What is an example of an abiotic factor?
Sunlight
What is the highest consumer of energy pyramids?
Above the tertiary consumers are quaternary consumers, or apex predators
In which order does a hawk, grass, and rabbit go in a food chain?
Grass, Rabbit, Hawk
A group of oxen live in a tundra environment where they interbreed and grow. What ecological level of organization can these oxen be classified in?
Population
Relationship in which both participating individuals benefit Ex: bees and flowers
Mutualism
What term describes living organisms in a ecosystem that interact with each other and the environment?
Biotic Factors
Why is the Pyramid shape used to represent the flow of energy?
Its used to represent the flow of energy because of the way that energy is used up throughout the system
What type of organism eat other plants and animals for energy and nutrients?
Heterotrophs
What is an ecosystem?
A system that includes all living organisms (biotic factors) in an area as well as its physical environment (abiotic factors) functioning together as a unit.
One individual benefit the other is neither helped or harmed Ex: cactus wren and chullo cactus
Commensalism
These non-living components of an ecosystem include factors such as temperature, sunlight, and soil composition what are they called?
Abiotic factors
How does energy pyramids work?
Shows the loss of energy though an ecosystem
Rabbits eat grass and other plants to survive, but they do not eat animals. What kind of animal are rabbits?
Herbivores
What is the zone of air, land and water where organisms exist, commonly known as the global sum of all ecosystems referred to as?
Biosphere
An ecological interaction between two organisms
Symbiosis
Give an example of how a biotic factor can depend on a abiotic factor in an ecosystem?
How the population of plants in a desert ecosystem depends on the availability of water
How many levels does the energy pyramids have?
The energy pyramid has four levels