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Biology 3-1 to 6-3
Biology 3-1
| Question | Answer |
|---|---|
| What is Ecology? | Organisms and their enviroment, or their surroundings. |
| What is a biosphere? | All of life exists,including land, water, air or atmosphere. |
| What is a species? | A group of organisms so simular to one another that they can breathe and produce offspring. |
| What is a population? | Groups of individuals that belong to the same species and live in the same area. |
| What is a community? | Assemblage of different populations that live together in a defined area. |
| What is a ecosystem? | A collection of all the organisms that live in a particular place, together with their nonliving, or physical, enviroment. |
| What is an autotroph? | Organisms that use energy from the enviroment to fuel the assembly of simple inorganic compounds into complex organic molecules. |
| What are heterotroph? | Organisms that rely on other organisms for their energy and food supply. |
| What is a food web? | The feeding relationships amung the various organisms in an ecosystem form a network of complex reactions. |
| What is tropic level? | Each step in a food chain or food web. |
| What is biomass? | The total amount of living tissue within a given tropic level. |
| What is a biogeochemical cycle? | Allows elements, chemical compounds, and other forms of matter to pass from one organism to another and from one part of the biosphere to another through this |
| What is limiting nutrient? | When an ecosystem is limited by a single nutrient that is scarce or cycles very slowly. |
| What is weather? | The day-to-day condition of Earth's atmosphere at a particular time and place. |
| What is climate? | Something that refers to the average year-after-year conditions of temperature and precipitation in a particular region. |
| What is the green house effect? | The natural situation in which heat is retained by this layer of greeenhouse gases. |
| What is a biotic factor? | The biological influences on organisms within an ecosystem. |
| What is an abiotic factor? | Physical or non-living factors that shape ecosystems. |
| What is a niche? | The full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions? |
| What is logistic growth? | What occurs when a populations growth slows or stops following a period of exponential growth. |
| What is carrying capacity? | The largest number of individuals that a given enviroment can support. |
| What is demography? | The scientific study of human populations. |
| What is demographic transition? | A dramatic change in birth and death rates? |
| What is the green revolution? | The introduction of modern agricultural techniques. |
| What is a renewable source? | Can regenerate if they are alive or can be replenished by biochemical cycles if they are non-living. |
| What is a pollutant? | A harmful material that can enter the biosphere through the land, air, or water. |
| What is biodiversity? | The sum total of the genetically based variety of all organisms in the biosphere. |
| What is biological magnification? | Concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or food web. |
Created by:
justinhess
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