A type of mammal relies on krill to survive in cold waters.

A water system that always flows south.

A organism that synthasises it's own food.

The primary male reproduction system.

When populations become crowded, individuals compete for food, water, space, sunlight, and other essentails.

These are affected primarly by the waters depth.

This servers as a spawning and nursery grounds for many ecolgically and commercially imported fish and shellfish species.

An organism that eats both vegitation and other organism.

The process of egg formation and release occurs.

Controls the factor of growth.

The ocean below the photic zone where photosynthesis cannon occur.

A type of forests grow in areas where rainy

When only 10% of the energy is passed through the food chain.

The follicle turns yellow?

Affect all populations in similar ways, regards of population size and density.

An ecosystem in which water either covers the soil or is present at or near the surface.

This Biome recieves more seasonal rainfall than deserts but less than trpoical dry forests.

A certain species that is very importana to an ecosystem.

Key event in early development that produces 3 layers.

When species fight amongst thesmelves if overcrowded.

A special kind of wetland, formed where a river meets the sea.

Mild moist air from the Pacific Oceean influenced by the Rocky Mountains provides abundant rainfall to this Biome.

Eat tertiary consumers.

Tissues of fetus become specialized.

Causes droughts, floods, and wildfires.