Name Grade and Section Rating Signature of Parent Over Printed Name General Instruction: Read the direction carefully. ALTERATION, ERASURE and TAMPERING of answers means WRONG. B Multiple Choice. Write the correct answer in all CAPITAL LETTERS on the space provided before each number.(20 x 1= 20 pts) 1. All of the members of a particular species that live in one area are called a (an) A. biome population C. community D. ecosystem 2.It is composed of different organisms living in the same region. A. biome B. population C. community D. ecosystem 3.Refers to the variety of life in the area A. biome B. biodiversity C. community D. ecosystem 4. Why is biodiversity important to ecosystems? A. It increases at each level of the food chain. B. It helps populations adapt to ecological changes. C. It reduces the number of insects in a given ecosystem. D. It allows animals to feed permanently from one type of plant. 5. A type of biodiversity pertaining to the variety and abundance of species within a region. A. Ecosystem diversity B. Genetic diversity C. Species diversity D. Biodiversity index 6. A type of biodiversity pertaining to the variation of genes within species. A. Ecosystem diversity B. Genetic diversity C. Species diversity . Biodiversity index 7. A type of biodiversity pertaining to the variation among groups of organisms in different physical settings A. Ecosystem diversity B. Genetic diversity C. Species diversity D. Biodiversity index 8.A scale of diversity of plant and animal species in a given area. A. Ecosystem diversity B. Genetic diversity C. Species diversity D. Biodiversity index 9. Anything that limits the size of a population like certain environmental conditions are called A. limiting factors B. limited factors C. unlimited factors D. carrying capacity 10.All are examples of limiting factors EXCEPT for one A. water B. food C. light D.rocks 11.All are major causes of deforestation in the Philippines EXCEPT for one A.kaingin farming B. reforestation C. illegal logging D. forest fires 12. An endangered species is A.a species in danger of extinction B. a species growing on public land C. an organism brought to a place where it has not lived before D. a species that has disappeared entirely 13. The major human causes of extinction today are A.hunting and destroying habitats. C. Both (a) and (b) B.polluting and introducing non-native species, D. Neither (a) nor (b) 14. General term for species in which the number of individuals falls so low that extinction is possible A. Endangered species B. Threatened species C. Keystone species D. Exotic species 15. All are examples of endangered species EXCEPT one A. Tamaraw B. Tarsier C. Dugong D. Maya​