Name: ___________________________________________________ Per.: _______ Date: _________________ Assignment #: _______ Symbiosis Worksheet Pre$Video Questions 1. Define the term “symbiosis” ________________________________________________________________________________ _________________________________________________________________________________________________________________ 2. Classify the following examples as predation, commensalism, mutualism, or parasitism: Example Classification Barnacles create home sites by attaching themselves to whales Ticks feed on deer blood A wolf hunts for young elk A honey badger follows a honeyguide bird to a beehive, where they both feed on the honey Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Since the visual abilities of the two species are different, they each can identify threats the other animal would not as readily see. Hermit crabs live in shells made and then abandoned by snails. As buffalos walk through the grass, insects become active and are seen and eaten by cowbirds. Oxpeckers are a type of bird that feed on ticks found on rhinos. Mistletoe lives on spruce trees, and extracts the tree’s water and nutrients. Tapeworms live inside human intestines and take nutrients that the human consumes. 3. What do sharks feed on? ___________________________________________________________________________________ _________________________________________________________________________________________________________________ 4. Do you believe that sharks are good or bad? Why? ______________________________________________________ _________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________
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Name:&___________________________________________________&Per.:&_______&Date:&_________________&Assignment&#:&_______&Symbiosis(Worksheet(&Pre$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&&
&
& &
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&&
&
& &
Clip&2:&Shark&&&Shark&Suckerfish&&&
&&
& &
Clip&2:&Hammerhead&Shark&&&Barberfish&&&
&
& &
Clip&3&(starts&at&45:00):&Shark&&&Fishermen&&&
&
& &
&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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