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 Notes-CH. 1
| Question | Answer |
|---|---|
| What is Ecology? | The study of relationships of organisms with their environment. |
| oikos means what? | Greek for house |
| Environment consists of what in Ecology? | Abiotic and Biotic factors |
| Abiotic factors are? | wind, temperature, salinity, aspect |
| Biotic factors are? | prey, predators, competitors, parasites |
| Who had close contact with nature? | early humans; and it was critical knowledge for hunting, gathering, and farming |
| Modern Humans and ecology. | have little direct contact with nature; and ecology is important because we are rapidly changing the biosphere and need to understand the consequences |
| Nitrogen cycle is? | nitrogen movement between the nonliving environment and organisms |
| Nitrogen cycle has increased.. | altered land use and increased CO2 in atmosphere |
| What is a population? | a group of individuals of one species in a particular area |
| What is a community? | the populations of various species in a particular area |
| What is an ecosystem? | community plus factors(abiotic and biotic) in a particular area |
| What is a niche? | how an organism makes a living |
| What is a habitat? | where an organism makes a living (address) |
| What is a biosphere? | the ecosystem of the entire globe |
| What is aeroecology? | the interdisciplinary study of the earth-atmosphere boundary |
| What is urban ecology? | The study of urban areas as complex, dynamic ecological systems |
| What is niche partitioning? | EX: when several warblers with the name niche (insect eating) may coexist because each species specializes on a different zone of the forest trees |
| What is an isotope? | a version of an element with a particular number of neutrons |
| List the carbon isotopes.. | 12C, 13C, 14C |
| Most common carbon isotope | 12C |
| 14C can be used for what? | a dating sample |
| Stable isotopes like 12C and 13C can be used to identify what? | food sources |
| 12C is preferentially used by.. | woodland plants(C3 photosynthesizers) |
| 13C is preferentially used by.. | grassland plants(C4 photosynthesizers) |
| C3 and C4 are.. | alternative photosynthetic pathways |
| Rainforests occur where? | in both tropical and temperate locations |
| Rainforests are right in what and poor in what | rich in life but with nutrient poor soils |
| What are epiphytes? | plants such as orchids and ferns that live on the branches of other plants |
| Pollen | distinctive with species and is durable |
| What is evolution? | a process by which populations change over time |
| What is adaptation? | an evolutionary process that changes anatomy, physiology, or behavior, resulting in an increased ability of a population to live in a particular environment |
| Scientific Method | Information-Question-Hypothesis-Prediction-Test of Hypothesis |
| What are nutrients? | chemical substances required for the development, maintenance, and reproduction of organisms |
| What is primary productivity? | conversion of abiotic energy into the chemical energy of biomolecules (starches, lipids, protiens) |
| Most of Earth's primary productivity on land and water surfaces is due to.. | photosynthesis The abiotic energy source = photon energy |
| Primary productivity also occurs at hot springs located on land and | underwater the abiotic energy source = hydrogen sulfide |
| What does detritus mean? | nonliving organic matter, usually the remains of plants |
| What are decomposers? | bacteria, fungi, some invertebrates(earthworms) |
| What is energy fixation? | the conversion of abiotic light or chemical energy into energy contained in biomolecules(cellulose, starch, protein) |
| What is nutrient fixation? | the conversion of inorganic nitrogen, carbon, phosphorus into forms usable as biomolecules(starches, proteins, nucleic acids) |
| What does fixation mean? | moving something from the nonliving state to the living state |
Created by:
ahall2305
Popular Biology sets