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SCIENCE_AND_TECHNOLOGY_GROUP_1_REPORT-Copy.pptx

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SCIENCE_AND_TECHNOLOGY_GROUP_1_REPORT-Copy.pptx

  1. 1. TUNDRA ECOSYSTEM o Tundra ecosystems are devoid of trees and are found in cold climates or where rainfall is scarce. These are covered with snow for most of the year. Tundra type of ecosystem is found in the Arctic or mountain tops.
  2. 2. DESERT ECOSYSTEM o Deserts are found throughout the world. These are regions with little rainfall and scarce vegetation. The days are hot, and the nights are cold.
  3. 3. AQUATIC ECOSYSTEM SECOND TYPE OF ECOSYSTEM o Aquatic ecosystems are ecosystems present in a body of water. These can be further divided into two (2) types, namely: 1. Freshwater Ecosystem 2. Marine Ecosystem
  4. 4. FRESHWATER ECOSYSTEM o The freshwater ecosystem is an aquatic ecosystem that includes lakes, ponds, rivers, streams and wetlands. These have no salt content in contrast with the marine ecosystem.
  5. 5. MARINE ECOSYSTEM oThe marine ecosystem includes seas and oceans. These have a more substantial salt content and greater biodiversity in comparison to the freshwater ecosystem.
  6. 6. ROLL and PICK PASS THE DICE ANSWER: Give the 4 TYPES OF TERRESTRIAL ECOSYSTEM
  7. 7. STRUCTURE OF ECOSYSTEM
  8. 8. o The structure of an ecosystem is essentially a description of an environment’s organisms and physical features. This includes the amount and distribution of energy in the environment. STRUCTURE OF ECOSYSTEM
  9. 9. STRUCTURE OF ECOSYSTEM Two (2) main components, namely: o ABIOTIC COMPONENTS o BIOTIC COMPONENTS
  10. 10. DIAGRAM OF STRUCTURE OF ECOSYSTEM
  11. 11. BIOTIC COMPONENTS Biotic components are categorized into three (3): o Producers o Consumers o Decomposers
  12. 12. BIOTIC COMPONENTS PRODUCERS o include all autotrophs such as green plants. They are called autotrophs as they can produce food through the process of photosynthesis. They are responsible for producing all of the energy in the ecosystem. o Consequently, all other organisms higher up on the food chain rely on producers for food.
  13. 13. BIOTIC COMPONENTS PRODUCERS
  14. 14. BIOTIC COMPONENTS CONSUMERS o or heterotrophs are organisms that depend on other organisms for food. o Mainly animals. Consumers are further classified into three(3); PRIMARY CONSUMERS, SECONDARY CONSUMERS and TERTIARY CONSUMERS.
  15. 15. BIOTIC COMPONENTS PRIMARY CONSUMERS o are always herbivores as they rely on producers for food. o They can be animals such as elephant, cows, grasshopper, goat, rabbit etc.
  16. 16. BIOTIC COMPONENTS SECONDARY CONSUMERS o are mostly carnivores as they depend on primary consumers for energy. o They considered as a “meat eater.” o They are animals such as Lion, Snakes, Cats, Hawks, Wolves, Dogs.
  17. 17. BIOTIC COMPONENTS TERTIARY CONSUMERS o is an animal that obtains its nutrition by eating primary consumers and secondary consumers. o Large predators.
  18. 18. BIOTIC COMPONENTS DECOMPOSERS o It includes fungi and bacteria that obtain their nutrients from a dead plants or animal material. o They directly thrive on the dead and decaying organic matter. o Decomposers are essential for the ecosystem as they help in recycling nutrients to be reused by plants.
  19. 19. ABIOTIC COMPONENTS o Abiotic components refer to all non- living components in an ecosystem that shapes its environment.
  20. 20. ABIOTIC COMPONENTS o It includes air, water, soil, minerals, sunlight, temperature, minerals.
  21. 21. ROLL and PICK
  22. 22. ROLL and PICK PASS THE DICE ANSWER: What are the three (3) classification of Consumers. Give1 example for each.
  23. 23. FUNCTION OF ECOSYSTEM
  24. 24. FUNCTIONS OF ECOSYSTEM The functions of the ecosystem are as follows: 1. It regulates the essential ecological processes, supports life systems and renders stability. 2.It is also responsible for the cycling of nutrients between biotic and abiotic components. 3.It maintains a balance among the various trophic levels in the ecosystem.
  25. 25. FUNCTIONS OF ECOSYSTEM The functions of the ecosystem are as follows: 4.It cycles the minerals through the biosphere. 5.The abiotic components help in the synthesis of organic components that involve the exchange of energy.
  26. 26. FUNCTIONS OF ECOSYSTEM Functional units of an ecosystem or functional components that work together in an ecosystem 1. Productivity – It refers to the rate of biomass production. 2. Energy flow – It is the sequential process through which energy flows from one trophic level to another. The energy captured from the sun flows from producers to consumers and then to decomposers and finally back to the environment.
  27. 27. FUNCTIONS OF ECOSYSTEM 3. Decomposition – It is the process of breakdown of dead organic material. The top-soil is the major site for decomposition. 4. Nutrient cycling – In an ecosystem nutrients are consumed and recycled back in various forms for the utilization by various organisms.
  28. 28. THAT’S ALL, THANK YOU !
  29. 29. CHECK YOUR UNDERSTANDING
  30. 30. Directions: Identify what is being asked on the following questions. 1. A type of ecosystem which consists of several plants, particularly trees, animals and microorganisms that live in coordination with the abiotic factors of the environment. 2. A Greek word for ecosystem means “home”. 3. It provides important nutrients for the plants. It helps anchor the plants to keep in place.
  31. 31. Directions: Identify what is being asked on the following questions. 4. It is essentially a description of an environment’s organisms and physical features. This includes the amount and distribution of energy in the environment. 5. It is a type of ecosystem which are devoid of trees and are found in cold climates or where rainfall is scarce.
  32. 32. Directions: Write the letter that corresponds to the correct answer. 6. Which of the following are called called autotrophs as they can produce food through the process of photosynthesis? A. Consumers C. Ecosystem B. Producers D. Decomposers
  33. 33. Directions: Write the letter that corresponds to the correct answer. 7. What do you call to the interconnection of all living and nonliving organisms in an environment or habitat? A. Interconnectedness C. Ecosystem B. Interaction D. Energy Flow
  34. 34. Directions: Enumerate what is being asked. 8-11. Give the Functional units of an ecosystem or functional components that work together in an ecosystem. 12-15. Draw the diagram of Structure of Ecosystem.
  35. 35. ANSWERS: 1. Forest Ecosystem 2. Oikos 3. Soil 4. Structure of Ecosystem 5. Tundra Ecosystem 6. B 7. C
  36. 36. ANSWERS: 8. Productivity 9. Energy Flow 10. Decomposition 11. Nutrient Cycling
  37. 37. ANSWERS: 12-15.
  38. 38. THAT’S ALL, THANK YOU !

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