A group of organisms of one species living in the same area is called a __________., All the populations of different species living in the same area together make up a __________., The place in which a particular organism lives is called its __________., An ecosystem that receives a lot of rainfall, provides shelter from wind, and has very varied biodiversity is called a __________ ecosystem., An ecosystem that receives little rainfall and a great amount of sunlight, with communities that are often quite small, is called a __________ ecosystem., The cutting down and clearing of forests, usually for farms, logging or building homes, is called __________., When too much of a substance gets into the air, water or soil and causes harm, that substance is called a __________., Physical features of an organism, such as a monkey's strong arms and grasping tail, that help it survive in its habitat are called physical __________., When large areas of land, such as forests, get broken up into small pieces due to roads, cities or farmland, this is called habitat __________., Removing too many animals from the wild, faster than they can reproduce, such as through overfishing, is called __________., A non-native species that causes a lot of harm to its new ecosystem, such as the Nile perch in Lake Victoria, is described as an __________ species., Rain that becomes very acidic because gases such as sulfur dioxide and nitrogen oxides dissolve in clouds is called __________., The slow build-up of a toxic substance, such as mercury, in a living organism's body is called __________., A saltwater ecosystem, a freshwater ecosystem, and a forest ecosystem are three examples used to illustrate that an ecosystem can exist in areas of very different __________., When a toxic substance such as mercury becomes more and more concentrated at each higher level of a food chain (from plankton to small fish to larger fish), this process is called __________., Decomposers break down dead plant and animals (true/false), Overfishing helps the marine ecosystem (true/false), Plant are called because they can make their own food …, Most of the Earth’s surface is covered by …, The relationship where one organism benefits and the others is harmed is called…

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