Biomes Crossword Puzzle

Biomes

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Across

Down

A region of evergreen, coniferous forest below the arctic and subartic tundra regions

Region with little or no vegitation, long periods without rain, and extreme temperatures

A plain full of grasses and scattered trees and shrubs; dry climate

In arctic regions, the permanently frozen layer of soil or subsoil

A gradual process of change and replacement in a community

Area where fresh water from rivers mixes with salt water from the ocean

Process when cells produce energy from carbohydrates

The distance north or south from the equator

Cool, humid weather and abundant rainfall, where tree branches are draped with mosses, tree trunks are covered with lichens, and forest covered with ferns

The cyclic movement of phosphorus in different chemical forms from the environment to organisms and back

The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic environments

Dominated by grasses, has few trees, and is characterized by cold winters and rainfall that is intermediate betweent that of a forest and a desert

The layers of treetops that shade the forest floor

Bacteria that convert atmospheric nitrogen into ammonia

A large region characterized by a specific type of climate and certain types of plant and animal communities

A final, stable community in equilibrium with the environment

Process when one community replaces another community that has been partially or totally destroyed

Forest or jungle near the equator; large amounts of rain; little variatioin in temperature

Succession that begins in an area that previously did not support life

Area of land that is periodically underwater or whose soil contains a great deal of moisture

Diagram that shows the feeding relationships

Process when plants use sunlight, carbon dioxide, and water to produce oxygen

A species that colonizes an uninhabited area and that starts an ecological cycle

Process in which nitrogen circulates among the air, soil, water, plants, and animals

One of the steps in a food chain or food pyramid

A long ridge of sand or narrow island that lies parallel to the shore

Pathway of energy transfer through various stages

A forest that is characterized by trees that shed their leaves in the fall

The basic food source in an ecosystem

An increase in the amount of nutrients, such as nitrates, in a marine or aquatic ecosystem

The region near the bottom of a pond, lake, or ocean

The organisms that live at the bottom of a pond, lake, or ocean

A foliage layer that is beneath and shaded by the main canopy of a forest

Organism that eats other organisms

The average weather conditions in an area over a long period of time

The height of an object above a reference point

Tropical or subtropical marine swamp that is characterized by the abundance of low to tall trees

Organism that feeds by breaking down organic matter from dead organisms

Limestone ridge found in tropical climates and composed of coral fragments that are depositied around organic remains

Type of vegetation that includes broadleafed evergreen shrubs and that is located in areas with hot, dry summers and mild, wet winters

The top foliage layer in a forest where the trees extend above surrouding areas

Treeless plain that is located in the Arctic or Antarctic

A shallow zone in a freshwater habitat were light reaches the bottom and nurtures plants

The movement of carbon from the nonliving environment into living things and back

Maritime habitat with grasses, sedges, and other plants that have adapted to continual, periodic flooding

All organisms that swim actively in open water, independent of currents

Answer