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BIOL 1902 Final Exam Review With Complete Solutions Latest Update
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BIOL 1902 Final Exam Review With Complete Solutions Latest Update
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BIOL 1902 Final Exam Review With CompleteSolutions Latest Update
Describe orb weavers -ANS>webs are flight intercept traps
describe sheet web spider webs -ANS>flight intercept traps, but not sticky, knock
down strands (ex bowl and doily spider)
describe funnel weavers -ANS>usually build webs on ground
webs are hygroscopic. what does this mean -ANS>attract moisture to keep silk not
brittle
dew dries up to let webs be invisible again
what are some spider web facts? -ANS>stronger than bone (half as strong as steel)
can contain 6 types of silk
to build an orb web takes 20 mins
describe the Argiope -ANS>highly visible (has UV)
highly visible zig zag in middle (stabilimentum)
have UV to attract insects
describe pitfall traps -ANS>made by ant-lion larvae
,traps in sand that insects fall itno
could mole tunnels be considered as traps? -ANS>yes
describe aggressive mimicry and give some examples -ANS>use a lure to attract
other animals
(alligator snapping turtle, angler fish)
Describe ospreys feet -ANS>- huge talons and scales for grip
- reversible outer toe
-
bird of prey with talons are: -ANS>raptors
describe the hooded maganser -ANS>specialized bills for holding fish, tooth like
projections
lack lamellae
otters use what to catch fish> -ANS>canine teeth
canines are powered by what muscle -ANS>teporalis muscle
tiger beetles use modified _____ for hunting -ANS>mandibles
,frogs use what to push prey down their throat -ANS>eyes
wood peckers use extensible tongue to catch prey. whats that called? -ANS>hyooid
foxes use what method to kill prey -ANS>shake and break method
wolves use what method to kill prey -ANS>'slash and shock' bite repeatedly
how do weasels kill prey? -ANS>bite into cranium
how do bobcats kill prey? -ANS>seperate vertebrae with teeth
bird hawks kill with what -ANS>talons
how do snakes swallow prey whole? -ANS>walk animal down throat with teeth,
gray rat snakes and milk snakes are constrictors
describe venom -ANS>inject toxins, also inject digestive enzymes, (massasauga
rattlesnake)
(crab spiders and assassin bugs inject toxins plus enzymes)
describe robber flies -ANS>visual hunters, inject toxins and digestive enzymes
, what is special about the short tailed shrew? -ANS>mammal with poison bite (only
mammal)
how do spiders deal with indegestible parts? -ANS>suck juices
hawks? -ANS>pluck feathers then eat it (bones left behind) (called selective
feeding)
bears? fishcers? -ANS>skin animals (fischers slash porcupines face, flip in over and
eats belly, leaving skin)
wolves? -ANS>eat meat and small bones as well
- so they eat hair as well to protect inards from sharp bones
owls? -ANS>swallow small prey whole, about 12 hours later pellets coughed out
what are some dangers to predators? -ANS>- prey fights back
- accidents during the chase
- ingestion of toxins (bioaccumulation of toxins through food chain...ex peregrine
falcon)(ex botulism
- humans
- #1 problem is starvation
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