Feeding Relationships, Food Chains, Food Webs

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1 Autotrophs a Self feeders producetheir own food throughphotosynthesis Transformation of light.
energy to chemicalenergy to make food inthe form of glucoseb Examples plants 2 Heterotrophs .
Heterotrophsa Depend on other organisms for their food1 Herbivore Herbivore Eats only plants2 Carnivore .
Carnivore Eats only meat3 Omnivore Omnivore Eats both plants and4 Detrivore Detrivore Eats dead organisms.
3 Decomposers a Break down and absorb nutrients fromdead decaying organismsb Examples mushrooms and bacteria Symbiosis.
a close permanent relationshipbetween organismsb Three major types 1 Mr Fungus is ready to greet our friend the alga1 Commensalism 2 Mutualism .
3 Parasitism 2 Friend alga cell is prepared togreet Mr Fungus3 The Lichen is created between the fungus and the algaRELATIONSHIPSCommensalism .
a A feeding relationship in which one organismbenefits and the other is not affected b Example Remoras that live on or around ashark s mouth Remora benefits.
from the scrapsof food that fallfrom the shark smouth and theshark is not.
Mutualism a Both organisms benefitfrom the relationshipb you scratch my back andI scratch yours .
c Example tickbirds eatparasites off of the backof zebras The tickbirdsget fed and the zebragets cleaned .
Parasitism a One organism benefitsand the other is harmedb Example tapewormliving inside an.
organism s intestine may cause death c Example flea living on ahttp magma nationalgeographic ... 1 Food Chain .
a model showing the movement of energy through theb Consists of Producers Consumers and Decomposers Producer living organisms that take non living matter like minerals and gases from the environment anduse them to support life Example plants These are.
the first organisms in the food chain Consumer living thingsthat need producers tobe their food EX Herbivores .
carnivores and omnivores Decomposer living thingswhich feed off of deadplants and animals to reducetheir remains to minerals and.
gases again FOOD CHAINS AND FOOD2 Food Web a More complicated and more realistic thana food chain.
b Shows more than one possible food sourcefor each organismc Steps in food chains or food webs arecalled trophic levels d Producers make up.
the first trophice Consumersmake up second third or higher When you read a food chain or food web the.
arrows point from what is being eaten towhat it is eaten by where the energy goes Ex mouse snake the mouse is KEY CONCEPT.
Pyramids model the distribution of energy and matterin an ecosystem AN ENERGY PYRAMID SHOWS THE DISTRIBUTIONOF ENERGY AMONG TROPHIC LEVELS Energy pyramids compare energy used by.
producers and other organisms on trophic levels Between each tier of an energypyramid up to 90 percent of theenergy is lost into theatmosphere as heat .
Only 10 percent of the energy ateach tier is transferred from onetrophic level to the next energy transferred 1 WITH YOUR GROUP WORK TO ANSWER THE.
FOLLOWING QUESTION If each level in a foodremains forchain typically loses 90 this level of the energy it takes in.
and the producer leveluses 1000kcal of energy how much of that energy 3rd levelis left after the thirdtrophic level .
1 000 kcal 2 WITH YOUR GROUP WORK TO ANSWER THEFOLLOWING QUESTION Why is an herbivorous diet more energy efficientthan a carnivorous diet Explain your answer .
OTHER PYRAMID MODELS ILLUSTRATE ANECOSYSTEM S BIOMASS AND DISTRIBUTION OFORGANISMS Biomass is a measure of the total dry mass oforganisms in a given area .
tertiary 75 g m2consumers 675g m2producers 2000g m2 A pyramid of numbers shows the numbers of individualorganisms at each trophic level in an ecosystem .
tertiary 5secondary 5000primary 500 000producers 5 000 000 A vast number of producers are required to support even a.
few top level consumers 3 WITH YOUR GROUP WORK TO ANSWER THEFOLLOWING QUESTION What is the difference between a biomass pyramidand a pyramid of numbers .
What is a similarity of all 3 types of pyramids FEEDING RELATIONSHIPS, FOOD CHAINS, FOOD WEBS HEADINGS VOCABULARY IMPORTANT INFO FEEDING TYPES Autotrophs: Self feeders, produce their own food through photosynthesis Transformation of light energy to chemical energy to make food in the form of glucose Examples: plants, algae Heterotrophs: Depend on other organisms for their food Herbivore: Eats only plants Carnivore: Eats only meat Omnivore ...

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