Set: Ecology test study guide

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All 41 Terms

Term Definition
Ecology is the study of interactions among living things, and between living things and their surroundings.
Ecosystem includes all of the organisms as well as the climate, soil, water, rocks and other nonliving things in a given area.
Biosphere is the part of earth where life exists.
Community is a group of different species that live together in one area such as groups of alligators.
Population is the number of people in a place.
Producers are organisms that get their energy from nonliving resources, meaning they make their own food.
Consumers are organisms that get energy by eating other living or once-living resources such as plants and animals.
Decomposers are detritivores that break down organic matter into simpler compounds.
Food web is a model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond an ecosystem.
Abiotic Factors are nonliving things such as moisture, temperature,wind,sunlight and soil.
Biotic Factors are living things such as plants, animals, fungi, and bacteria.
Biodiversity is the assortment, or variety, of living things in an ecosystem.
Carbon cycle is the building block of life- is key to the structure of all organisms on our planet.
Water cycle is also known as the water cycle, is the circular pathway of water on the earth from the atmosphere, to the surface below ground.
Energy Pyramid is a diagram that compares energy used by producers primary consumers, and other trophic levels.
Pyramid of numbers shows the numbers of individual organisms at each trophic level in a ecosystem.
Biomass pyramid is a measure of the total dry mass of organisms in a given area.
Trophic level are the levels of nourishment in a food chain.
Biomes is a measure of the total dry mass of organisms in a given area.
Desert biome characterized by a very dry climate.
Grassland is an area where the primary plant life is grass.
Deciduous forest is the forest with trees that lose their leafs.
Coniferous forest is pine tress forest.
Taiga biome with long and cold winters, lasting up to six months also called boreal forest.
Tundra is located beyond the taiga in the northern latitudes.
Chaparral also called Mediterranean shurbland, biome charecterized bye hot, dry summersand cool, moist winters
Latitude is along the equator
The unequal heating of the earth surface causes The different zones on the earth, to have different climates.
Population density is a measurement of the numbers of individuals living in a defined space.
Growth rate the growth of a population at different times.
Death rate deaths per year.
Birth rate births per year.
Density dependent factors are limiting factors that are affected by the number of individuals in a given area.
Density independent factors are the aspects of the environment that limit a populations growth regardless of the density population.
Primary succession is the establishment and development of an ecosystem in an area that was previously uninhabited.
Secondary succession is illustrated as the reastablishment of a damaged ecosystem in an area where the soil was left intact.
Climate is the long-term pattern, of weather conditions in a region.
Microclimate is the climate of a small specific place within a larger area.
Wind patterns wind movements and weather.
Global warming the trend of increasing global temperature.
Major cause of ozone depletion carbon dioxide discharges in the atmosphere.

Set Information

Terms 41
Creator juliatinloy
Created October 6, 2008
Groups None
Subject biology
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