A | B |
savanna | tropical biome covered by grasses, shrubs & small trees |
type of biome in temperate area | grassland, chaparral, desert biome |
type of biome in cold areas | tundra & desert biome |
countries with a savanna | S. America, W. India, N. Australia, Africa |
length of the wet season | a few months |
herbivores in savanna | antelopes, giraffes, elephants |
predators in savanna | cheetahs, lions, hyenas |
how savanna grasses conserve water | vertical leaves that limit sun exposure |
how savanna plants keep predators away | thorns/sharp leaves |
why savanna animals give birth during the rainy season | because food is plentiful at that time |
type of rainfall needed for temperate grassland | moderate, but still too little for trees to grow |
why mountains play a crucial role in maintaining grasslands | rain clouds release most of their moisture over mountain areas |
why grassland areas have many fires | summer lightening strikes the dried out grass |
types of temperate grassland vegetation | grasses & wildflowers |
only location of few shrubs & trees in temperate grassland | banks of streams |
what helps grassland plants survive drought & fire | root system w/dense layers |
area w/most fertile soil in world | temperate grasslands |
most abundant crops grown in grasslands | wheat & corn |
amount of rain needed for prairie shortgrass | 25 cm |
amount of rain needed for prairie mixed or middlegrass | 50 cm |
amount of rain needed for prairie tallgrass | 88 cm |
animals of temperate grasslands | grazing (antelope, bison), burrowing (badgers, prairie dogs, burrowing owls) |
types of threats to temperate grasslands | farming, overgrazing |
chaparral | temperate shrubland biome |
climate of chaparral | moderately dry, coastal, little/no rain in summer |
latitudinal location of chaparral | 30 degrees north & south of equator |
common chaparral plants | chamise, manzanita, scrub oak, olive trees, sage & bay |
common chaparral animals | quail, lizards, chipmunks, mule deer (camouflage) |
threat to chaparral | human development |
desert | driest place on earth |
common desert plant | succulents (cactus) |
what prevents the sun from drying up a cactus | waxy coating |
what keeps animals from devouring cactus' flesh | sharp spines |
fatal water content level for most plants | below 50 -75 percent of their mass |
common animals of the desert | reptiles (Gila monsters, rattlesnakes), amphibians (spadefoot toad) |
common sleep pattern of desert animals | nocturnal |
tundra | biome located in northern artcic regions |
permafrost | permanently frozen layers of soil |
tundra's summer bugs | mosquitoes & black flies |
vegetation of the tundra | mosses, lichens, campion, gentian, willow, birch |
common tundra animals | caribou, wolves, moose lemmings, mice, hares, arctic foxes |
common tundra threat | pollution caused by spills/leaks of oil & other toxic materials |