Biomes Earths Biomes A is a largescale ecosystem

Biomes

Earth’s Biomes A _____ is a large-scale ecosystem Its _____ and the _____ and animals adapted to living in that climate are what make it different from other biomes Within a climate zone, patterns of ______, ______ and the amount of _______ are similar throughout Name three things that help determine climate zones (p. B 65) Name the 6 major types of land biomes Explain why there may be differences in

Tropical Rain Forests Found near the _____, where earth receives direct _____ most of the year, so it usually warm The climate is also very ______ Here you find half of all of the different kinds of ____ on earth Very few plants live on the rain forest ____ because very little sunlight gets down through the thick canopy A lot of diversity among _____ as well, many of whom can live in tree branches

Deciduous Forests Have many broad-leaved trees that shed their ____ every fall Temperatures and the amount of rainfall are _____ (not too much/high and not too little/low) Every continent except for ____ and _____ have deciduous forests The varying amounts of _____ Earth’s surface receives during the year cause changes of ______ Seasonal changes, cause a yearly cycle of _____ growth and the growing season lasts about ______ months ______ can reach the floor of the deciduous forests and this allows a layer of small trees and shrubs

Grasslands ______ are moderate, rainfall is ______ and ____ are the dominant plants Grasslands are found on every continent except ______ The long, slender leaves allow little ____ loss Their _______ grow just below the surface of the soil, so they take in much of the rain that does fall Trees that do grow are usually found near _____, where they can get more water Grasslands play a major role in ________ Grasslands are also used to _____ herds of livestock, such as cattle and sheep

Deserts The _____ is always shining, it doesn’t ______ very often, and the soil and air are very _________ may form after heavy rains, but they usually don’t last All desert organisms have ______ to extremes in temperature and very little water Desert plants have adaptations that help them ____ water _____ of plants lie close to the surface of the soil, so they can quickly absorb water Roots may also grow up to 50 feet long in order to reach underground ____ Animals usually come out to hunt at _____ when it is cooler

Taiga The taiga is a _______ of needle-leaved evergreens The taiga winters are too long for most _____ trees to survive Needles have a waxy covering that protects them from the ______ and limits the amount of _______ loss Evergreens don’t shed their needles all at once, so they can make ______ all year The trees form an almost solid _____ so there are only two layers in the taiga The diversity of life changes from _____ to _____ The taiga is the earth’s ______ biome

Tundra Low _____ and long _____ prevent trees from growing Only smaller plants that send out ______ in dense, shallow mats are able to survive on the tundra _____, a layer of permanently frozen soil just below the surface, is the reason larger plants cannot survive In the ______, the surface of the ground begins to thaw allowing a few small plants to grow Because of its distance from the _____, the sun is rarely seen in the fall and winter Many animals migrate into the _____ for the winter In the summer, the ______ shines all the time allowing plants to sprout and grow in a few weeks

Comparing Biomes Starting at the poles, as you move toward the equator, biomes occur in this order: _______, ________, ____ Biomes are in this order because the corresponding _______ zones occur in this order At the _____ the sun is directly overhead most of the year, and the number of hours of daylight varies only a little As you move from the equator toward the poles, each climate zone receives a little less energy from the _____ During the winter, no sunlight reaches the areas near the ______ Temperate zones near oceans or other large bodies of water may have enough moisture for __________. While temperate zones farther from the water may only have enough moisture for _____ Variation in ______ also affect climate High ______, such as the Rocky Mountains, have local climates that result in taiga on their slopes and tundra on their peaks