One particular individual in a defined area​

A rock

Found at polar latitudes, this biome is characterized by low rainfall and long, cold winters.

Interactions between species within the ecosystem​

Organisms that break down dead or decaying organisms.

All biomes together​

A sea turtle

In this biome, organisms are adapted to retain water for long periods of time and withstand high temperatures and sunlight.

An interaction where both species benefit.

One part of the trophic structure, describing a linear sequence of feeding relationships​.

Individuals of a single species in a defined area​

A halophytic plant

Located near the equator, this type of forest remains warm and humid throughout the entire year.

When two species try to use the same resource in the same way at the same time​.

Type of organism that converts energy from an external source into more useable forms​.

All of the fiddler crabs and oysters in the intertidal zone.

A wooden table

This biome is characterized by the presence of trees that produce cones and pines.

interactions between two different organisms living in close contact

These describe each rank in the feeding hierachy.

The temperature of a pond and all of the different species within the pond.

A piece of moss

This biome is characterized by the presence of Deciduous trees that have broad leaves and shed annually.

The type of interaction between a sea otter and a sea urchin.

A lot of energy is lost as this throughout the trophic structure.