front 1 all the living and nonliving things in an area that interact with each other | back 1 Ecosystem |
front 2 levels of organization | back 2 hierarchy |
front 3 anything that constrains a population's size and slows or stops it from growing | back 3 limiting factors |
front 4 the average number of individuals in a population per unit of area | back 4 population density |
front 5 factors that affect population size and growth because of the number of species living there, like availability of food, parasitism, predation, disease, and migration | back 5 density dependent |
front 6 factors that affect population size and growth that have nothing to do with how many species are living there, like natural disasters and human activity | back 6 density independent |
front 7 something consumed by organisms that provides energy, and usually provides nutrients needed to sustain life | back 7 food |
front 8 the liquid that fills the oceans, rivers, lakes, and ponds and falls from the sky as rain | back 8 water |
front 9 a location or structure that gives protection | back 9 shelter |
front 10 an area that is empty or open for use | back 10 space |
front 11 all of the nonliving parts of an ecosystem, like air, water, and sunlight | back 11 abiotic factor |
front 12 all of the living parts of an ecosystem, such as plants and animals | back 12 biotic factor |
front 13 a group of different populations that live together and interact in an environment | back 13 community |
front 14 a group of organisms that share similar characteristics and can mate with each other to produce offspring | back 14 species |
front 15 the location in which an organism lives | back 15 habitat |