Name:&___________________________________________________&Per.:&_______&Date:&_________________&Assignment&#:&_______&Symbiosis(Worksheet(&Pre$Video)Questions)
1. Define&the&term&“symbiosis”&________________________________________________________________________________&
_________________________________________________________________________________________________________________&
2. Classify&the&following&examples&as&predation,&commensalism,&mutualism,&or¶sitism:&&Example) Classification)
Barnacles&create&home&sites&by&attaching&
themselves&to&whales&
&
Ticks&feed&on&deer&blood& &
A&wolf&hunts&for&young&elk& &
A&honey&badger&follows&a&honeyguide&bird&to&a&
beehive,&where&they&both&feed&on&the&honey&
&
Ostriches&and&gazelles&feed&next&to&each&other.&&
They&both&watch&for&predators&and&alert&each&other&
to&danger.&&Since&the&visual&abilities&of&the&two&
species&are&different,&they&each&can&identify&threats&
the&other&animal&would¬&as&readily&see.&
&
Hermit&crabs&live&in&shells&made&and&then&
abandoned&by&snails.&
&
As&buffalos&walk&through&the&grass,&insects&become&
active&and&are&seen&and&eaten&by&cowbirds.&
&
Oxpeckers&are&a&type&of&bird&that&feed&on&ticks&
found&on&rhinos.&
&
Mistletoe&lives&on&spruce&trees,&and&extracts&the&
tree’s&water&and&nutrients.&
&
Tapeworms&live&inside&human&intestines&and&take&
nutrients&that&the&human&consumes.&
&
&&3. What&do&sharks&feed&on?&&___________________________________________________________________________________&
_________________________________________________________________________________________________________________&4. Do&you&believe&that&sharks&are&good&or&bad?&&Why?&&______________________________________________________&
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________&
&&
Video)Questions:)Ecological)Relationships)Interacting)Species)Pair) Ecological)Relationship)
Prediction))(Predict)whether)it)will)be)predation,)commensalism,)mutualism,)or)parasitism))
Actual)Relationship)(Identify)the)correct)relationship)AND)describe)what)specifically)happens))
Clip&1&(starts&at&3:30):&Tiger&Shark&&&Loggerhead&Turtle&&
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& &
Come&up&with&your&own&example&from&the&video&&&&List&it&here:&&&&&
& &
Clip&2&(starts&at&7:00Y12:00):&Whitetip&Shark&&&Jack&fish&
&
& &
Clip&2:&Shark&&&Mackerel&&
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& &
Clip&2:&Shark&&&Shark&Suckerfish&&&
&&
& &
Clip&2:&Hammerhead&Shark&&&Barberfish&&&
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& &
Clip&3&(starts&at&45:00):&Shark&&&Fishermen&&&
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& &
&Post$Video)Questions))
1. Why&are&humans&fishing&sharks?&&__________________________________________________________________________&__________________________________________________________________________________________________________________________________________________________________________________________________________________________________&
2. If&sharks&disappear&from&their&communities,&what&effect&might&that&have&on&other&organisms?&&___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________&
3. What&is&something&that&people&are&doing&or&can&do&in&order&to&help&shark&communities?&&&___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________&
4. Identify&the&organism&that&fits&the&niche&description:&&a. ___________________________&Makes&webs&and&eats&insects&&b. ___________________________&Specialist&that&feeds&on&bamboo&&c. ___________________________&&Lives&on&both&wild&and&household&animals,&feeding&on&blood&and&
causes&itching.&&&d. ___________________________&Builds&dams&to&flood&an&area&and&make&deep&ponds.&&&
5. &Diagram&and&label&each&of&the&three&symbiotic&relationships:&&Commensalism) Mutualism) Parasitism)
& &&&&
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