Direction: Read the directions carefully then identify the terms being described by the statements given below.
1. It is a group of living things within a certain area that are all of the same species.
2. It is the variety of life in a given area. 3. This refers to the environmental condition that limits the size of a population.
4. It is a formula that is used to describe the number of species that are present in a given habitat.
5. It refers to the vanishing of a species when the last of its species dies.
6. These are animals and plants whose numbers are very low or reducing rapidly. 7. These are animals and plants that are so rare and that they are at risk of becoming extinct.
8. It is the destruction of an existing natural habitat, decreases or eliminates the sources of food or living space for most species.
9. It is an organism that is not natural or belonging to a particular area.
10. This refers to the harvesting of renewable resources to a point of decreasing its number.
11. It is a natural phenomenon that usually happens at the beginning of the rainy season or when heavy rains occur after a dry spell.
12. It is an increase in the temperature of the Earth because of the rapid build up of carbon dioxide and other gases. 13. It is a group of air pollutants from the combustion process.
14. It is the major problem in rivers, ponds, and lakes. This is the process that stimulates the growth of pla life in water usually resulting in the depletion of dissolved oxygen.
15. It is an approach to the planning of economy that is trying to make it grow faster while maintaining the quality of the environment for the next generation. 16. It may cause acidification in the soil, surface of water, or ecosystem.
17. It decreases the natural resources to the extent that they are not capable to recover within a short peri of time. 18. It is a class of individuals having common characteristics.
19. It is the number of individuals per unit area.
20. It is diminishing biodiversity within an organism and its environment.​