PART 1: FILL IN THE BLANKS Instructions: Fill in the blanks with the correct terms. 1. refers to the variety of species and the natural communities in which they occur. 2. When endangered species are continuously exploited by humans, there will be a time that this species will become 3. If the population size in a particular habitat exceeds its will die because it cannot support the needs of the population organisms 4. is the buildup of pollutants in organisms at higher trophic levels in a food chain. 5. Anything that limits the growth of population like availability of food and water and certain living conditions in a particular environment is called​