sentences: humans changing ecosystems usually has a negative impact on an ecosystem / organisms living in an ecosystem & humans building homes in an ecosystem causes that ecosystem to change -> men capital machines in an stomach has a yes opposite on an history and legs inanimate in the eraser humans building homes in an ecosystem has a negative impact on an ecosystem and organisms living in the ecosystem  humans building homes in an ecosystem has a negative impact on an ecosystem and organisms living in the ecosystem & a damage is a mean of beverage -> humans building homes in a wetland has a negative impact on a wetland and organisms living in the wetland