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Levels Of Organazation


a group of organisms of the same species inhabiting an area.


 A community is a group of interacting organisms.


In biology, an organism is any living thing in an ecosystem.


Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems....


Our biosphere is the global sum of all ecosystems. It can also be called the zone of life on Earth, a closed (apart from solar and cosmic radiation) and self-regulating system. From the broadest...


the system formed by the interaction of a community of organisms with the environment...

Food Chain

Food chains and food webs are representations of the predator-prey relationships between species within an ecosystem or habitat. Many chain and web models can be applicable depending on habitat or...

Food Web

A group of organisms who live off one another including serveral foodchains.

Trophic Levels


Producers get the energy from natural resources and are trees, grass, Fruits and vegitables.

Primary Consumer

Animal that feeds on the primary producers. Often a herbavore.

Secondary Consumer

Animal that feeds off primary consumers. Its a carnivoire.

Tertiary Consumer

A high level carnivoire

Trophic levels definition

The energy levels in a food chain or food web - primary producer, primary consumer, secondary consumer, tertiary Consumer.



Freshwater Biome

A biome of freshwater species living in one ecosystem living off one another.

Marine Biome

The marine biome has to do with the oceans. It consists of the coral reefs, animals, and oceans.

Biotic Factors

Biotic factors are the factors in a biome, ecosystem, amd habitat that include all living things. not non living things.

Abiotic Factors

The opposite of Biotic factors, they are the non living species in a ecosystem.


Biodiversity is the variety of species within a given ecosystem/biome.

Hot Spots

A area heavely populated by many diffrent type of species, very biodiverse.

Limiting Factors

Ecological Succession

he process by which organisms move into a area and change tje environmental conditions so that other species can replace the original ones.

Primary Succession

Succession beginning with bare rock like a volcano run off lava and soil from most likely run off.

Secondary Succession

Diffrent from primary succession, secondary succession is a process started by Forest fires, floods, and hurricans, natural disasters.

Pioneer Species

The first species to enter an ecosystem and start it, like lichens connecting to rocks and starting the living animals in a barren land.

Climax Community

is a community of wildlife, including plants and animals, that has reached a perfect balance.

Limiting Factors

A factor or limiting resource in an ecosystem.

Carrying Capacity

The carrying capacity of a ecosystem is the population size of the species that the environment can sustain.


Population Growth

Population growth is the change in a population over time in an ecosystem.

Black Plague

between 1348 and 1350 a great plague killing millions of people lowering the population serverly, killed more people then any other thing in that time.

Industrial Revolution

The change from agriculture developement to machinery instead, created more jobs, easy life, and advances in medicene to pro long life.

Exponential Growth

exponential growth is the growth in biological organisms. Its a significant increase.


The ecosystem staying diverse and living well. The biome can sustain itself.

Logistic Growth

population reaches carrying capacity due to population limiting factors in a biome.


A steady growth of population over time.


A slow increase up and down in a population in a biome.

Population Growth Rate

The rate at which animals re-populate and live in a biome.



Underground areas for water filtering it.

Water Pollution

Bodys of water being by pollution including, pestacides, run off, chemicals, and big businesses dumping into rivers connecting into lakes and oceans.

Point Source

Point source pollution is pollution that comes from one spot like a production plant dumping into rivers.

Non Point Source

Non Point Source is when Pollution is coming from multiple areas and not just from one spot.