Ecology with Save a Species PBL Crossword

the largest population that an environment can support at any given time
An environmental factor that prevents a population from increasing
factor that limits a population more as population density increases (examples... disease, competition, predator prey)
limiting factors whose influence is not affected by population density (examples.... drought, deforestation, floods, fires)
Living things in an ecosystem
Place where an organism lives
A community of organisms and their abiotic environment
A trait that helps an organism survive and reproduce
Very low temperatures, very little rainfall, mostly as snow. Very small trees, a few herbs, mosses and lichens
A Biome characterized by cold winters and cool summers, richly packed with evergreen trees and shrubs, furry mammals, birds, cold water fish, etc.
A forest biome characterized by trees that shed their leaves in the fall. Range of the temperatures can be extreme. Vegetation changes with the seasons because of the temperature.
a grassland biome that often has few scattered trees and and animals that travel in heards
a biome that has little or no plant life, long periods without rain, and extreme temperatures; usually found in hot climates
A water biome with low salt concentration. Ex. ponds, rivers, streams
Biome located loser to equator ( warm, maximum sunlight). Rain: about 100 inches per year. Contain half of all land dwelling species, provide large percent of earth's oxygen.
a physical feature of an organism's body having a specific function that contributes to the survival of the organism
English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
A natural process resulting in the evolution of organisms best adapted to the environment.
Diagram that shows the evolutionary relationships (small changes over time) among a group of organisms
A group of similar organisms that can breed and produce fertile offspring.
A very simple representation of who eats who in the environment
network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem showing the energy transfer as you move up the web
a species that is not normally in the ecosystem and disrupts the food web