LEARNING ACTIVITY SHEET : BIODIVERSITY, Lecture notes of Biology

Download LEARNING ACTIVITY SHEET : BIODIVERSITY and more Lecture notes Biology in PDF only on Docsity! SAN Republic of pines: aDepartment of Goucation REGION V - BICOL SCHOOLS DIVISION OFFICE OF TABACO CITY ANTONIO NATIONAL HIGH SCHOOL LEARNING ACTIVITY SHEET in SCIENCE 10 Name of Student: 3 Quarter, Week 8 Grade Level: 10 Date: BIODIVERSITY I. Introductory Concept: Biodiversity describes how varied are life forms in different ecosystems. The Philippines is known for its very rich biodiversity. According to an article published in the department of Environment and Natural Resources (DENR) website “ the country has more than 52, 177 described species of which more than half is found nowhere else in the world.” On a per unit area basis, the Philippines probably harbors more biodiversity of life than any other country in the planet. But our country is considered as biodiversity hotspot. This is because our country is continuously experiencing an alarming rate of environmental destruction like damage of coral reefs, forests and other similar important resources. Do you know how important biodiversity? How many kinds of living things can be found in your community? Think about the place in the community, try to identify organisms that can be found in your locality and are valuable to your life? Why do you consider those organisms important to you? Now, perform the following activity to help you understand the importance of biodiversity. Il. Learning Skills from the MELCs: *explain how species diversity increases the probability of adaptation and survival of organisms in changing environments. lll. — Activities: ACTIVITY 1 Classifying the Value of Biodiversity List down the five organisms found in your area and describe the value of the organism. An example is given for your reference. Organism Direct Economic Indirect Economic Aesthetic Value Value Value Trees Source of lumber Freshen the air Provide a_ beautiful landscape 1. 2 3 4 5. ANALYSIS 1 1. What are the organisms mostly found in your area? 2. How do these organisms affect or contribute to your daily life? 3. What is direct economic value? 4. How important is the aesthetic value of the organisms? \ 5. Why is biodiversity in an area important? les = “Remember this! ‘Species /Organisms have direct economic value like being sources of food, medicine, clo&§ing, shelter, and energy. A species has an indirect economic value if there are benefits produced by the organism without using them. For example, certain species maintain the chemical quality of natural bodies of water , prevent soil erosion and floods , and absorb pollutants. An example of aesthetic value of organism is providing visual or artistic enjoyment, like a forested landscape and the calming beauty of a natural park or they may be used for spiritual meditation. Biodiversity is very important because it sustains the flow of energy of the food web on earth and contributes to environmental stability. Stability of an ecosystem can be described as the resilience to withstand changes that may occur in the environment. There are many changes that occur in the environment which may be a result of natural or human activities. These changes may severely reduce biodiversity and result to the instability of the ecosystem. ABSTRACTION Environmental Issues Affecting Biodiversity Environmental Problems Cause of the Effect to the Problem Biodiversity 1. Farmlands are converted into housing projects Farmland to Housing Project 2. River ecosystem dumped with garbage from illegal settlers and toxic wastes from industries River to Wasteland 3. Forested area is converted into technopark Forest to Techno Park