Question | Answer |
What is an ecosystem? | All the living and nonliving things that interact in an area. |
What is habitat? | The place where an organism lives and that provides the things it needs. |
What is a biotic factor? | A livin gpart of an ecosystem. |
What is a abiotic factor? | A nonliving part of an ecosystem. |
What is photosynthesis? | The process in which organisms use water along with sunlight and carbon dioxide to make food. |
What is a species? | A group of organisms that are similar and reproduce to produce fertile offspring. |
What is a population? | All the members of one species in a particular area. |
What is a community? | All the different populations that live together in an area. |
Waht is ecology? | The study of how living thing interact with each other and their environment. |
What is population denisty? | The number of individuals in a specific area. |
What is an estimate? | An approximation of a number based om reasonable assumptions. |
What is birth rate? | The number of births in a population in a certain amount of time. |
What is death rate? | The number of deaths in a population in a certain amont of time. |
What is immigration? | Moving into a population. |
What is emigration? | Leaving a population. |
What is a limiting factor? | An environmental factor that prevents a population from increasing. |
What is carrying capacity? | The largest population that an area can support. |
What is natural selection? | Process by which individuals that are better adapted to the environment are more likely to survive and reproduce than others. |
What is adaptation? | The behaviors and physical characteristics of species that allow them to live successfully in their environment. |
What is a niche? | An organism's particular role in an ecosystem or how it makes its living. |
What is competition? | The struggle between organisms for the limited resources in a habitat. |
What is predation? | An interaction in which one organismckills and eats another. |
What is a predator? | The organism that does the killing in predation. |
What is a prey? | An organism that is killed in predation. |
What is symbiosis? | A close relationship between species that benefits at least one of the species. |
What is mutualism? | A relationship between 2 species in which both species benefit. |
What is commensalism? | A relationship between 2 species in which 1 species benefits and the other in neither helped nor harmed. |
What is parasitism? | A relationship in which one organism lives on or inside another and harms it. |
What is a parasite? | The organism that benefits by living on or in a host in parasitism. |
What is a host? | The organism that a parasite lives in or on in parasitism. |
Explain how water and sunlight are 2 abiotic factors that are important to all organisms. | All living thing require water and in places without sulight, plants cannot clothes. |
List the terms in order from smallest to the largest: population, orgaism, ecosystem, and community. | Organism, population, community, ecosystem. |
List 4 ways or determining population size. | Direct observation, indirect observation, sampling, mark-and-recapture studies. |
A prairie dog, a hawk, and a badger are all part of the same, what? | Community |
List some limiting factors for populations. | Food, space, weather. |
What type of interaction do both species benefit? | Mutualism. |