| A | B |
|---|
| Habitat | Place where an organism lives |
| Biotic factors | Living parts of a habitat. Includes the animals, plants, fungi, protists, and bacteria. |
| Abiotic factors | Non-living parts of a habitat. Includes space, soil, water, air, light, temperature, etc. |
| Ecology | Study of how living things affect one another. |
| Environment | All of the organism's surroundings |
| Population | All the members of a species in the same area |
| Community | All the different populations in an area |
| Ecosystem | Community of organisms in an area and the non-living parts. All of the biotic and abiotic factors in an area |
| Competition | Struggle between organisms to stay alive because they need/want the same resources. Examples: having the same food source, water, space, mates, other resources. |
| Predator-prey | Relationship where one organism kills another for food. Examples: Lion kills gazelle. Hawk eats mouse. |
| Predators | Organisms that kill another organism (called prey). |
| Prey | Organisms that are killed and eaten by predators. Have adaptations to escape predators. |
| Symbiosis | Close relationship between members of two species. At least one species benefits. |
| Parasitism | Type of symbiosis. One species is harmed (host) and one species is helped (parasite). +/- relationship. Ex: Dog with a tick. Tick=gets food=+. Dog=gets disease=-. |
| Parasite | Organism that lives in or on anotehr, to the host's detriment. Is helped in parasitism. |
| Host | Organism that a parasite lives in or on. Is harmed in parasitism. |
| Mutualism | Type of symbiosis. Both species gets help/benefits. +/+ relationship. Example: Bee and flower. Bee gets food. Flower gets help with pollination. |
| Commensalism | Type of symbiosis. One species is helped. One is unaffected. +/0 relationship. Bird builds nest in tree. Bird gets a home. Tree isn't helped or harmed by the bird. |
