1. DO NOW: 1. Find yourself on the MAP schedule. 2. Do the expert questions packet

2. When a question says to “draw” a food web or food chain It means this….. Acorn  mice  tick It doesn’t mean this….

3. How do abiotic factors affect an ecosystem? Give 2 examples! Temperature- affects which animals can live in an ecosystem. Not all animals can survive at certain temperatures. Water- and its abundance or absence affects whether certain plants can grow easily and the available supply for other organisms. Soil – provides nutrients for producers

4. Complete the chart Producer Consumer Herbivore Consumer Carnivore Consumer Omnivore Decomposer Def. Using sunlight to make own food Eats producers Animal eater Eats a variety of meats and vegetables Gets energy by breaking down dead organisms Ex. Fern, tree, shrubs Rabbit, guinea pig Dog, lionhumansBacteria, fungi, algae

5. Explain the importance of decomposers in an ecosystem Decomposers remove energy from dead organisms and produce materials that can be used by producers. They are natures recyclers

6. Pd 1

7. Describe how producers, consumers and decomposers are linked in a food chain Consumers feed on producers and other consumers. Decomposers feed on producers and other consumers after they are dead.

8. Describe how energy flows though a food web Energy flows from producers to consumers to decomposers. More energy is available to producers than to consumers

9. Pd 7

10. Draw 2 food chains and illustrate how they link together to form a food web 2 food chains: Grass  rabbit  snake  owl  decomposers Flowers  rabbit  owl  decomposers Food web: grass flowers rabbit snake owl decomposers

11. Explain the relationship between carrying capacity and limiting factors Carrying capacity is the maximum number of individuals of a species that can live in an environment. Limiting factors are resources that affect the numbers of a given population. Limiting factors affect the carrying capacity because when a population grows larger than its carrying capacity, limiting factors in the environment (like water supply, disease, etc) will cause individuals to die off or leave. Then the population will decrease and return to the carrying capacity.

12. Pd 6

13. Compare co evolution with symbiosis Co evolution happens when a symbiotic relationship occurs over a very long period of time and changes the structure or behavior of the organisms involved in the relationship. The change happens for a positive reason and helps both of the organisms. Symbiosis is a relationship between two organisms but does not necessarily cause a change in the organisms.

14. Complete the chart Symbiotic Relationship DefinitionExample Mutualism + Relationship when both member of the relationship benefit African Crocodile (+) & Plover (+) Commensalism + 0 Relationship when one member of the relationship benefits and the other one is unaffected (does not care) Shark (0) & Remora (+) Parasitism + - Relationship where one of the members benefits and the other is harmed Tic (+) & mammal (-)