EXIT:Fill in Level of Understanding and Compare and contrast a food web and food chain! (17 word min!)

Transcription

1 AGENDA ABSENT BLOCK 9/16 & 9/17 week-6 TOPIC: Eco-Relationships OBJ : 6-7 DO NOW: EXT: Pond Water Activity DUE DATE: 9/18 DW: Obj/Vocab EVALUATE the benefits of being an autotroph and a heterotroph. Science of Life A-produce own food, so they do not rely on other Os for food source. H-have a wider variety for their diet -Review 2.2 Application Notes -Pond Water Activity HANDOUTS to PICK-UP: -Pond Water Activity TURN IN to ABS box: SEMINAR 2: BEFORE/AFTER SCHOOL: DW-2.2 APP NTS EXIT:Fill in Level of Understanding and Compare and contrast a food web and food chain! (17 word min!)

2 BLOCK BLOCK: 9 / 17&18 OBJECTIVE #_6-7 TOPIC: Ecology Relationships Daily Grade- 2.2 App Notes DW GRADE: DO NOW A: A-produce own food, so they do not rely on other Organisms for food source. H-have a wider variety for their diet

3 UNIT OBJECTIVES 6-Explain the role of producers, consumers & decomposers in the transfer of energy in an ecosystem 7-CREATE & ANALYZE food web/food chain/ecological pyramid Add on to each QUESTION every night as REVIEW!

4 Vocabulary -autotroph -heterotroph -herbivore -carnivore -omnivore -detritivore -decomposer -trophic level -food chain -food web -biomass -energy CONTINUE TO WORK ON VOCAB FOR 2.2

5 REVIEW VOCABULARY DEFINE: Energy -the ability to cause change FOOD -energy cannot be CREATED or DESTROYED Ultimate source of energy?? -THE SUN

6 ENERGY in an ECOSYSTEM LIST 3 ways organisms obtain energy -MAKE own food -EAT other organisms -consume organisms -break down dead organisms -Inorganic compounds

7 ENERGY in an ECOSYSTEM COMPARE the terms by defining and giving examples: autotrophs-produce own energy using sunlight autotrophs are also called producers autotrophs are the foundation of all ecosystems because provides energy source for ALL organisms heterotrophs-consume other organisms to get energy heterotrophs are also called consumers heterotrophs perform some decomposition when consume other organisms, break down bodies organic material

8 ENERGY in an ECOSYSTEM MATCH terms with BEST definitions E-heterotrophs F-omnivores B-carnivores A-autotrophs D-herbivores C-detritivores 1-get energy by eating other organisms 2-eat both plants and animals 3-eat only animals 4-collect energy to produce own food 5-eat only plants 6-eat or break down dead things

9 ENERGY in an ECOSYSTEM TYPES OF HETEROTROPHS: HERBIVORE eats only plants (ex: cow) CARNIVORE eats only other heterotrophs (ex: wolf) OMNIVORE eats both plants & animals (ex: bear) DETRITIVORE eats dead matter (ex: worm) DECOMPOSER break down dead organisms by releasing digestive enzymes (ex: fungi)

10 ENERGY in an ECOSYSTEM -SUMMARIZE 3 ways organisms get energy by completing the table: TYPE OF ORGANISM Other names for this type AUTOTROPHS PRODUCER HETEROTROPHS consumers, herbivores, carnivores, scavengers, onmivores D&D No other name Food comes from 1- Chemical reactions that occur Examples -Sun -water -carbon dioxide -soil nutrients Photosynthesis Plants & Algae 2- Plants Animals 3- Dead Organisms Organisms eaten are turned into energy and molecules for the consumer s body Fish, Lion, Human Dead Organisms Break down of organic matter Fungi & Bacteria

11 ENERGY in the ECOSYSTEM -CLASSIFY each of the following organisms: A=Autotroph H=Heterotroph 1-alligator H 2-moss A 3-dandelion A 4-squirrel H 5-tiger H 6-rabbit H 7-daffodil A 8-tree A 9-whale H 10-spider H 11-tomato A 12-man H

12 MODELS of ENERGY FLOW GRASS producer-autotroph GRASSHOPPER 1 st level consumer-herbivore RACCOON 2 nd level consumer-omnivore CYOTE 3 rd level consumer-carnivore

13 MODELS of ENERGY FLOW DESIGN your own 3 step example of energy flow FOOD CHAINS always start with a plant. The lettuce is eaten by the slug, the slug is eaten by the bird.

14 MODELS of ENERGY FLOW LABEL ECOLOGICAL PYRAMID : primary consumers producers secondary consumers SECONDARY CONSUMERS PRIMARY CONSUMERS PRODUCERS

15 EXPLAIN why an ecological pyramid is smaller at the top than at the bottom. -there is LESS energy available MODELS of ENERGY FLOW RECALL the name for total amount of living matter in each trophic level of an ecological pyramid- BIOMASS -How much is transferred from one level to the next? % 10

16 Pyramid of energy example 18

17 Let s Watch a [short] Video Rule Of 10

18 MODELS of ENERGY FLOW COMPLETE the VENN DIAGRAM about how organisms get their energy. HETEROTROPHS AUTOTROPHS -animals -plants

19 MODELS of ENERGY FLOW STATE why detritivores are an important part of the ecosystem -main role is to RECYCLE NUTRIENTS -convert all organic matter CO2/Nutrients

20 ACTIVITY

21 2.2 ACTIVITY: POND WATER WEBS Use the food web to COMPLETE # IDENTIFY the PRODUCERS? -SEAWEED -PHYTOPLANKTON 2- IDENTIFY the CONSUMERS -use these letters to identify -C: carnivore -O: omnivore -H: herbivore H O C C C C H C C

22 2.2 ACTIVITY: POND WATER WEBS 3- INFER what would happen to the limpet population if the mussels were to die out due to a disease. -LIMPET population DECREASE *organisms that eat mussels will eat more limpets

23 2.2 ACTIVITY: POND WATER WEBS 4-INFER: how would the zooplankton be affected if the fish population were to increase. -ZOOPLANKTON population INCREASE *increase fish pop cause decrease prawn pop

24 2.2 ACTIVITY: POND WATER WEBS 5-INFER how would the whelk population be affected if the crabs were moved? -WHELK population INCREASE *more mussels/limpets available -WHELK population DECREASE *gulls and lobsters MAY eat more whelk than before w/decrease in crabs

25 2.2 ACTIVITY: POND WATER WEBS POND WATER WEB (use the baggie of cards provided by instructor) 6-SORT the cards into three categories listed below. Have your instructor check initial box when completed BEFORE moving on to step 7. -PRODUCERS -CONSUMERS -DECOMPOSERS -both-

26 2.2 ACTIVITY: POND WATER WEBS 7-CREATE four FOOD CHAINS on your table. (remember, each food chain must start with a producer) Have your instructor check & initial box when completed BEFORE moving on to step 8. 8-COMPLETE the chart below with the food chains you created in step 7.

27 2.2 ACTIVITY: POND WATER WEBS 9-CREATE a FOOD WEB: Use at least 10 cards to show the relationship between the organisms in a pond habitat. -Place these on top of LAB STATION and draw arrows with ERASER to show feeding relationships. -this is your rough draft / brainstorming phase. - You must use the 3 cards with stars! - You must use the 2 YOU MADE Have your instructor check & initial box when completed BEFORE moving on 10-DRAW your food web below using ONLY the NAME of ORGANISM and ARROWS showing ENERGY FLOW

28 2.2 ACTIVITY: POND WATER WEBS CONCLUSION QUESTIONS: 11-PREDICT: What would happen to YOUR food web if the aquatic plants died out because of pollution? 12- PREDICT: What would happen to YOUR food web if the population of great blue heron was to double? 13- PREDICT: Asian carp consume zooplankton, which many fishes typically feed on in their juvenile stages, and have no known predators. How would the introduction of an Asian carp affect YOUR food web?

29 EXIT FILL-IN: level of understanding of today s objective EXIT: Explain why decomposers are important in an ecosystem. Does a food chain have an end?