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6th Grade Unit 4.1 Ecosystems and Biomes

Horizontales
A type of biome where the tree growth is hindered by low temperatures and short growing seasons.
The continuous movement of nitrogen through Earth, its atmosphere, and the living things on Earth.
A living thing in an ecosystem.
A region of Earth that has a particular climate and certain types of plants. Examples are tundra, taiga, dessert, grassland, temperate forest, and tropical forest.
The scienctific study of how organisms react with their environment and all the other organisms that live in that environment.
A forest found between the tropical and boreal regions, located in the temperate zone. It is the second largest biome on our planet, covering 25% of the world's forest area, only behind the boreal forest, which covers about 33%.
A forest of the cold, subarctic region that lies between the tundra to the north and temperate forests to the south. Alaska, Canada, Scandinavia, and Siberia have them.
The continuous movement of carbon through Earth, its atmosphere, and the living things on Earth.
A model of the feeding relationships among many different consumers and producers in an ecosystem.
Describes the feeding relationship between a producer and a single chain of consumers in an ecosystem.
A shoreline area where fresh water from a river mixes with salt water from the ocean. They are often referred to as "nurseries of the sea," because so many marine animals travel into the calm waters to reproduce.
Verticales
Forested landscapes in tropical regions; land areas approximately bounded by the tropic of Cancer and Capricorn, but possibly affected by other factors such as prevailing winds.
A nonliving physical or chemical part of an ecosystem. The air that supplies oxygen and carbon dioxide, the soil that provides nutrients, the water in the pond, and the sunlight that plants need to grow are examples of this.
A term used to describe cone-bearing trees and shrubs that usually keep their leaves or needles during all of the seasons of the year. Examples are pine, fir, and spruce trees.
Organisms that get their energy by eating, or consuming other organisms.
Describes a particular environment and all the living things that are supported by it. It can be as small as a rotting log or as large as a desert.
Organisms that break down dead plant and animal matter into simpler compounds.
Shows the amount of energy available at each feeding level of an ecosystem.
A term used to describe trees and shrubs that drop their leaves when winter comes. Examples are maple, oak, and birch trees.
An organism that takes in energy and stored it in food as chemical energy.
A barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life.
A series of events that happens over and over again.