All the organisms present in a particular area, together with their physical environment

animal that preys on another organism

any chemical that an organism must take from its environment in order to survive

climate without extremes of heat and cold

condensation of water vapor, such as rain or snow

distance of a place from the equator, measured in degrees

geographical areas filled with a major community of plant and animal life

large scale cultivation of the land

  loss of water by evaporation through the plant’s pores

of or referring to cone-bearing trees, such as pines and their relatives

of or referring to high mountains

of, or living on, land

openings in the earth found at the ocean’s bottom

  shedding its leaves annually

taking place in or on water

the process by which organisms cause decay

those aspects of the weather, such as temperature, rainfall, and light that influence the life of organisms

wide grass -covered area with few trees

barren, often sandy area