4-3 biomes

Communities that are dominated by shrubs are also known as

Chapparell

What is another name for tropical savanna's

Grasslands

What happens to the ground in the tundra during the summer

It thaws to a depth of a few centimeters and become soggy and wet

What is true about deserts

The soils are rich in minerals but poor in organic material. Cactuses another succulents are dominant plants

On the climate diagram what does the line plot and what do the vertical bars show

9+ shows the change in temperature through the months of the year. The vertical bars show that amount of precipitation each month of the year

What is permafrost

A layer of permanently frozen subsoil

What is hummus

A material forms from decaying leaves and other organic matter that make soil fertile

What kinds of trees do temperature for us contain

A mix of deciduous and coniferous trees

What does a climate diagram summarize

A regions climate ( temp and precipitation)

What is a deciduous tree

A tree that sheds leaves during a particular season every year

What is a microclimate

Acclimate within a small area that differs significantly from the climate around it

When are the polar regions cold

All year round

Why are tundra plants small and stunted

Because of the cycle of thawing and freezing on the ground which rips and crushes plant roots. Cold temperatures, Highwinds, the short growing season, and hummus poor souls also limit plant height

Why is fire a constant threat in temperate Woodland and shrubland

Because of the growth of dense, no plants that contain flammable oils

Tundra

Biome that occurs near or above 60° North latitude

Tropical rain forest

Biome that occurs on or near the equator

Canopy

Dense covering formed by the leafy tops of all tall trees

What is true about boreal forest

Dominant plans include Spruce in for. Dominant wildlife includes a moose and other large herbivores

What is true about how each of the worlds major biomes is defined

Each is defined by unique set of abiotic factors. Each has a characteristic ecological community. Each is particularly defined by climate.

The abiotic and biotic conditions of the mountain ranges very with

Elevation

Conditions you were defined as you moved from the base to the summit of the mountain and order are

First grasslands, then open Woodland of Pines, forest of Spruce and other converse, stunted vegetation like that in the tundra

Boreal forest

Forest biome that occurs almost exclusively in the northern hemisphere

What is a biome

It's a complex of terrestrial communities that covers a large area and is characterized by certain soil and climate conditions and particular assemblies of plants and animals

What amount of annual precipitation defines a desert biome

It's defined by having annual precipitation of less than 25 cm

What is the geographic distribution of northwestern Coniferous forest

It's found on the Pacific coast of the north western United States and Canada from Northern California to Alaska

Understory

Layer of shorter trees and vines

What plants and algae can be found in the polar ice regions

Mossed and lichens

What factors maintain the characteristics plant community of temperate grass lands

Periodic fires and heavy grazing big large herbivores

In the north pole region what are the dominant animals

Polar bears, seals, insects, mites

Boreal forest are also called

Taiga

And what kind of place to tropical dry forest grow

They grow in places where rainfall is highly seasonal rather than a year round