| A | B |
|---|
| The living things that help shape an ecosystem are known as _________. | biotic factors |
| The non-living things that help shape an ecosystem are known as _______. | abiotic factors |
| An organism's ______ is where it lives and includes both biotic and abiotic factors. | habitat |
| An organism's ____ is kind of like it's job, and includes the way in which an organism eats, finds shelter, and reproduces as well as the physical conditions required by the organism to survive. | niche, 
|
| Two different species ______ share the same niche in the same habitat. | can't |
| Any necessity for life, such as water, nutrients, light, food, and space, are referred to as a _____. | resource |
| ______ occurs when organisms of the same or different species attempt to use an ecological resource in the same place at the same time. | Competition |
| The type of interaction where one animal captures and eats another animal is known as _____. | predation |
| The type of relationship in which two different species of organisms live closely together is called ____. | symbiosis,
|
| Name the three types of symbiotic relationships.,
| mutualism, commensalism, and parasitism |
| The type of symbiotic relationship in which both species benefit is called ____.,
| mutualism,
|
| The type of symbiotic relationship in which one species benefits while the other species is neither helped nor harmed is called ___.,
| commensalism,
|
| The type of symbiotic relationship in which one species benefits at the expense of the other is called ____.,
| parasitism,
|
| Fleas, ticks, lice and tapeworms are examples of ____. | parasites,
|
| The organism that a parasite lives on or in is called the ____. | host |
| The series of predictable changes that occur in an ecosystem as it ages is called ____. | ecological succession,  |
| The type of succession that starts from scratch (like on bare rock or ash) is called ____. | primary succession,  |
| The first species to populate an area that previously had no signs of life is called the ____. | pioneer species, |
| The type of ecological succession that occurs after a forest fire, or when farmland is abandoned, is called _____ | secondary succession,  |
| The final community of organisms, after the ecosystem has gone through succession and become stabilized, is called the ____. | climax community, |
