Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ecology Nakamura
Ecology flashcards
| Question | Answer |
|---|---|
| Ecology | the scientific study of interactions among organisms and between organisms and their enviroment, or surroundings |
| Biosphere | the combined portions of the planet in which all life exists, including, land, water, and air, or atmosphere |
| Species | a group of organisms so similar to one another that they can breed and produce fertile offspring |
| Populations | groups of individuals that belong to the same species and live in the same area |
| Communities | assemblages of different populations that live together in a defined area |
| Ecosystem | a collection of all the organisms that live in a particular place, together with thier nonliving, or physical, enviroment |
| Biome | a group of ecosystems that have the same climate and similar dominate communities |
| Autotrophs | organisms that use sunlight or chemicals to produce food |
| Producers | thigs that make their own food |
| Photosynthesis | the process of converting sunlight into food and energy |
| Chemosynthesis | the process of organisms using chemical energy to produce carbohydrates |
| Heterotrophs | organisms that rely on other organisms for thier food and energy supply |
| Consumers | another name for heterotrophs |
| Herbivores | organisms that obtain energy from eating plants |
| Carnivores | organisms that eat animals for energy |
| Omnivores | organisms that eat both plants and animals |
| Detritivores | organisms that feed off of plant and animal remains |
| Decomposers | organisms that break down organic matter |
| Food Chain | the chain through an ecosystem in which energy passes |
| Food Web | the network of feeding relationships in an ecosystem |
| Trophic Level | each step in a food chain |
| Ecological Pyramid | a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web |
| Biomass | the total amount of living tissue in a given trophic level |
| Biogeochemical Cycles | the process of elements, chemical compounds, and other forms of matter passing from one organism to another |
| Evaporation | the process by which water changes from liquid form to an atmospheric gas |
| Transpiration | the process of water entering the atmoshpere by evaporationg from the leaves of plants |
| Nutrients | all the chemical substances that an organism needs to sustain life |
| Nitrogen Fixation | the process of bacteria coverting nitrogen gas to ammonia |
| Denitrification | the process of bacteria converting nitrates into nitrogen gas |
| Primary Productivity | the rate at which organic matter is created by producers in an ecosystem |
| Limiting Nutrient | when an ecosystem is limited by a single nutrient |
| Algal Bloom | the result of a large input of limiting nutrient |
| Weather | the day to day condition of earths atmosphere at a particular time and place |
| Climate | the average year after year condition of temperature and precipitation in a particular region |
| Greenhouse Effect | the natural situationin which heat is retained by this layer of greenhouse gases |
| Biotic Factor | biological influences on organisms within an ecosystem |
| Abiotic Factor | physical, or nonliving, factors that affect an ecosystem |
| Habitat | the area where an organism lives |
| Niche | a full range of physical and biological conditions in which an organism lives and the way the organism uses those conditions, it is its occupation |
| Logistic Growth | when a populations growth slows or stops following a period of exponential growth |
| Carrying Capacity | the number of the largest number of individuals an ecosystem can support |
| Demography | the scientific study of human populations |
| Demographic Transition | a dramatic change in birth and death rates |
| Green Revolution | modern agricultural techniques, such as chemical fertilizers and monoculture |
| Renewable Resource | a recource that can regenerate if it is alive or can be replenished by biochemical cycles if they are nonliving |
| Pollutant | a harmful material that can enter the biosphere through the land, air, or water |
| Biodiversity | the sum of the total of the genetically based variety of all organisms in the biosphere |
| Biological Magnification | concentrations of harmful substances increas ein organisms at higher trophic levels in a food chain or food web |
Created by:
Lauren14
Popular Biology sets