Biomes

Question 0

Tri-cellular model

Answer 0

Atmospheric circulation helps to explain the difference in pressure belts, temperature and precipitation a that exist across the globe .

Polar cell (0-60) ferrel cell (60-30) Hadley cell (30-equator) & mirror image on other side for Hadley

Question 1

Biome

Answer 1

Collection of ecosystems sharing similar climatic conditions which are distinguished based on abiotic , biotic factors and climate .

Ex) tundra

Question 2

Pressure

Answer 2

High pressure away from equator —> rain rises

Low pressure near equator —> water falls

Question 3

Tropical rainforest

Answer 3

High constant temperature of about 70-80*F with high rainfall throughout the year , high temperature , direct sunlight and it’s located near the equator

Water standardizes temperature

Question 4

Desert

Answer 4

Located 30*N or S because dry air descends here from losing water vapor in the tropics. Deserts have high temperature, low isolation and low precipitation.

They have temperature variation
meaning that when temperature is high in an area it’s very high and when it’s low it’s very low

Question 5

Xerophytic Adaptations

Answer 5

Adaptations to reduce water loss in dry conditions

Question 6

Tundra

Answer 6

Located in high altitudes & latitudes of (0-60) . They contain large amounts of permafrost(frozen soil ) with lack of isolation and water that is trapped in ice . The growing season usually lasts for 6 weeks of the year .

Question 7

Temperate forests

Answer 7

Located 40-60 off equator where summers are warm and winters are cold. Overall they have less light and water with an average temperature . They also have two types of trees that strive there , evergreen(no loss of leaves) and deciduous(loss of leaves in winter) .

Question 8

Grasslands

Answer 8

They exist where there is not enough water just to sustain forests .

Further from the ocean or water they have less consistent water and more changes in temperature

Closer to water have more consistent access to water and more consistent temperature ranges

Question 9

Case

Answer 9

Human impacts on habitats destruction Degradation fragmentation and reconstruction

Organisms over exploitation, introduction of exotic competitors, predators and parasites and creating new pests

In response to the rapid decline of biomes in Homogenization of biotas, extinction , global warming and shortening of foodchains