Terms : Hide Images
| 10228633413 | organic molecules | carbon based molecules | 0 | |
| 10228635433 | inorganic molecules | Molecules that contain one or fewer carbon atoms (water, minerals, carbon dioxide, oxygen) | 1 | |
| 10228635434 | photoautotroph | organism that uses energy from sunlight to convert carbon dioxide and water to carbon compounds | 2 | |
| 10228635435 | chemoautotroph | producer that uses energy from chemical compounds to make food by chemosynthesis | 3 | |
| 10228635436 | producer | An organism that can make its own food (autotroph). | 4 | |
| 10228635437 | heterotroph | organism that obtains energy from the foods it consumes; also called a consumer | 5 | |
| 10228635438 | consumer | An organism that obtains energy by feeding on other organisms (also called a heterotroph) | 6 | |
| 10228635439 | decomposer | An organism that breaks down wastes and dead organisms | 7 | |
| 10228635440 | herbivore | A consumer that eats only plants. | 8 | |
| 10228635441 | carnivore | A consumer that eats only animals. | 9 | |
| 10228635442 | omnivore | An animal that eats both plants and animals | 10 | |
| 10228635443 | nocturnal | active at night | 11 | |
| 10228635444 | diurnal | active during the day | 12 | |
| 10228635445 | apex | the highest point | 13 | |
| 10228635446 | trophic level | feeding level in an ecosystem | 14 | |
| 10228635447 | symbiosis | a relationship in which two different organisms (of different species) live in close association with each other | 15 | |
| 10228635448 | commensalism | a type of symbiosis in which one organism benefits and the other organism is not harmed or helped (+,0) | 16 | |
| 10228635449 | parasitism | a type of symbiosis in which one organism benefits and the other organism is harmed (+,-) | 17 | |
| 10228635450 | mutualism | a type of symbiosis in which both organism benefit (+,+) | 18 | |
| 10228635451 | competition | Interaction among organisms that vie for the same resource in an ecosystem | 19 | |
| 10228635452 | interspecific | a relationship that is between species (between different species) | 20 | |
| 10228635453 | intraspecific | a relationship that is between organisms of the same species | 21 | |
| 10228635454 | predation | An interaction in which one organism kills another for food. | 22 | |
| 10228689788 | predator | An animal that hunts other animals for food | 23 | |
| 10228635455 | prey | An organism that is killed and eaten by another organism | 24 | |
| 10228635456 | warning coloration | conspicuous coloring that warns a predator that an animal is unpalatable or poisonous | 25 | |
| 10228635457 | camouflage | coloration for concealment so that an organism is hard to see or is disguised as something else. | 26 | |
| 10228635458 | opportunistic | taking immediate advantage of any circumstance of possible benefit | 27 | |
| 10228635459 | monogamy | having only one mate at a time | 28 | |
| 10228635460 | biome | A group of ecosystems that share similar climates and typical organisms | 29 | |
| 10228635461 | silage | food for animals | 30 | |
| 10228635462 | toxin | poison | 31 | |
| 10228635463 | exotoxin | a toxin that is secreted by microorganisms into the surrounding medium | 32 | |
| 10228635464 | endotoxin | a toxin that is present inside a bacterial cell and is released when the cell disintegrates | 33 | |
| 10228635465 | pesticides | poisons that target pest organisms | 34 | |
| 10228635466 | metabolic | the chemical processes within the body required for life | 35 | |
| 10228635467 | biological magnification | Toxins become more concentrated in successive trophic levels. | 36 | |
| 10228635468 | concentration | the spread of something over a given area | 37 | |
| 10228635469 | thermal stratification | warm water is less dense than cold water and tends to float on top | 38 | |
| 10228635471 | terrestrial | relating to land/earth | 39 | |
| 10228635472 | aquatic | relating to water | 40 | |
| 10228635473 | marine | relating to the sea | 41 | |
| 10228635474 | salinity | A measure of the amount of dissolved salts in a given amount of liquid | 42 | |
| 10228635475 | thermodynamics | the study of energy transformations that occur in a collection of matter | 43 | |
| 10228635476 | climax community | A stable, mature community that undergoes little or no change in species over time | 44 | |
| 10228635477 | succession | A series of predictable and orderly changes within an ecosystem over time. | 45 | |
| 10228635478 | biomass | total amount of living tissue within a given trophic level | 46 | |
| 10228635479 | net primary productivity | the energy captured by producers in an ecosystem minus the energy producers respire | 47 | |
| 10228635480 | mortality | death | 48 | |
| 10228635481 | carrying capacity | The largest population that an area can support | 49 | |
| 10228635482 | r-strategy | reproductive strategy in which organisms reproduce early, bear many small, unprotected offspring | 50 | |
| 10228635483 | k-strategy | reproductive strategy in which organisms take a long time to mature, and bear a small number of offspring that are given many resoursces | 51 | |
| 10228635484 | exponential growth | Population increase under ideal conditions. Forms a J-shaped curve. | 52 | |
| 10228635485 | logarithmic growth | growth of a population that levels off at carrying capacity. Forms an S-shaped curve | 53 | |
| 10228635486 | niche | An organism's particular role in an ecosystem, or how it makes its living. | 54 | |
| 10228635487 | competitive exclusion | Strong competition can lead to local elimination of one of the species. | 55 | |
| 10228635488 | density-dependent factors | factor that limits a population more as population density increases (ex. parasites, competition, predation) | 56 | |
| 10228635489 | density-independent factors | limiting factor that affects populations in similar ways, regardless of population size (ex. weather) | 57 | |
| 10228635490 | nitrogen fixing bacteria | bacteria that convert nitrogen in the air into forms that can be used by plants | 58 | |
| 10228635491 | denitrifying bacteria | bacteria that convert nitrates into nitrogen gas | 59 | |
| 10228635492 | nitrate/nitrite | usable nitrogen (for plants) | 60 | |
| 10228635493 | ammonification | decomposers convert organic waste into ammonia | 61 | |
| 10228635494 | assimilation | to absorb; plants take nutrients from the soil/air and use them when making organic compounds | 62 | |
| 10228635495 | excretion | the process by which wastes are removed from the body | 63 | |
| 10228635496 | anaerobes | microorganism having the ability to live without oxygen | 64 | |
| 10228635497 | aerobes | require oxygen | 65 | |
| 10228635498 | ozone | A form of oxygen that has three oxygen atoms in each molecule instead of the usual two; in the stratosphere, where it absorbs ultraviolet light, protecting life on Earth | 66 | |
| 10228635499 | ultraviolet radiation | Electromagnetic waves with wavelengths that are shorter than visible light and can damage living things | 67 | |
| 10228635500 | CFC (chlorofluorocarbon) | man made gas, typically used in refrigerants and aerosol propellants; harmful to the ozone layer in the earth's atmosphere | 68 | |
| 10228635501 | olfactory | relating to the sense of smell | 69 | |
| 10228635502 | eliminate | to get rid of | 70 | |
| 10228635503 | mean | average | 71 | |
| 10228635504 | sustainable | able to be maintained at a certain rate or level | 72 | |
| 10228635505 | optimum | best; most favorable; ideal | 73 | |
| 10228635506 | non-native | of plants or animals originating in a part of the world other than where they are growing (invasive, alien) | 74 | |
| 10228635507 | destabilize | to make unstable | 75 | |
| 10228635508 | consistent | the same throughout in structure or composition | 76 | |
| 10228635509 | progeny | offspring, babies | 77 | |
| 10228635510 | brood | a family of young animals, especially of a bird, produced at one hatching or birth | 78 | |
| 10228635511 | reintroduction | the process of returning animals to their native habitats | 79 | |
| 10228635512 | consequence | result | 80 | |
| 10228635513 | influx | a coming in, inflow | 81 | |
| 10228635514 | upstream | direction opposite the flow of a river; toward the source of a river or stream | 82 | |
| 10228635515 | consume | to use up | 83 | |
| 10228635516 | spawn | to bring forth; to lay eggs | 84 | |
| 10228635517 | excrement | Waste material from the body | 85 | |
| 10228635518 | carcass | the dead body of an animal | 86 | |
| 10228635519 | algal bloom | The rapid growth of a population of algae | 87 | |
| 10228635520 | desiccation | drying out | 88 |
