Tropical Rain Forest-Precipitation - 250cm/year. Little temp. variation/abundant moisture. Contains more species than other biomes.

  • Savannas-
  • Precipitation 90-150cm/year. Open, widely spaced trees, seasonal rainfall. Parts of Africa, South America & Australia.

    Deserts- Precipitation 20cm/year. Dry, sparce vegetation; scattered grasses. Parts of Africa, Asia, Australia, North America.

  • Temperate Grasslands-
  • Precipitation: 10-60cm/year. Rich soil; tall dense grasses. Central North America; Central Asia.

    Deciduous forests- 75-250cm/year. Warm summers, cool winters. Europe; NE United States;Eastern Canada

    1) Decomposers are organisms that break down dead or decaying organisms.

    2) Consumers are organisms of an ecological food chain that receive energy by consuming other organisms.

    3) An ecosystem is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system.

    4) Primary producers are organisms in an ecosystem that produce biomass from inorganic compounds (autotrophs).

    5) Humans are at the top of the food chain, so they hunt everything.

    6) The bug is no longer biotic because it got hit with a bat.

    7) There are not very many abiotic factors in a dark empty room.

    8) Animals use adaptation to survive.

    9) Biotic factors in a wetlands ecosystem are turtlehead flowers, water, trees, butterflires, competition, bacteria, carrying capacity, plaintain, ash, and the false foxglove.

    10) Abiotic factors in a wetland ecosystem are sunlight, air, climate, soil, water, rocks, and temperature.

    11) Grass - Grasshopper- Toad- Snake- Hawk- Bacteria of decay

    12) It enters in the form of sunlight.

    13) Energy transfers

    14) The food chain would be destroyed and probably not existant anymore.

    15) Wetlands have important filtering capabilities for intercepting surface- water runoff from higher dry land before the runoff reaches open water.

    16) Wetlands act as natural sponges, soaking up the flood waters.

    17) The ability of wetlands to control erosion is so valuable that some states are restoring wetlands in coastal areas to buffer the storm surges from hurricanes and tropical storms.

    18) More than 1/3 of endangered animals live in the wetlands.

    19) Natural products and recreation are popular in wetlands.