| Term | Definition |
| Environment | everything that surronds & affects an animal |
| Populations | a group of the same kind of animals or SPECIES, living in the same place, at the same time |
| ex. Populations | includes all the bullfrogs in a pond |
| ex. Environment | plants, other animals, rocks, air, water |
| Communities | all the populations of different animals and plants living together and INTERACTING with one another |
| The plants and animals of a community are to each other | because they DEPEND on one another to survive |
| Saltwater | Intertidal zone, Near-shore zone, Open ocean zone |
| Near-shore zone | the shallow area of ocean water that provides a habitat for many forms of life |
| Intertidal zone | the narrow strip of land covered by ocean water during high tides |
| Open ocean zone | the deepest part of the ocean |
| Salt marshes | animals that live here have to be adapted to change water "saltiness" and be able to live in both wet and dry periods of time |
| ex. Salt marshes | in a Mangrove swamp, the kinds of plants that can live there are limited by being able to adapt orlive in salty or fresh water condition |
| Salinity | amount of salt in the water |
| Ecosystem | a community of plants and animals, and non-living things in an enviroment |
| For a plant or animal to be able to SURVIVE in a certain ecosystem | they must be able to meet basic needs |
| Ex. of ecosystem | proper climate, enough food, sheltor,etc |
| NONliving parts equal | soil, sun, temperature, water, air |
| Climate | average weater of a place over a long time |
| ex.some types of ecosystem: | pond ocean forest desert estuary rainforests polar |