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64 Cards in this Set
- Front
- Back
what are some characteristics shared by most fish/
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1. cold blooded
2. gills to breathe2 3. hearth w/ 2 chambers 4. fins for swimming |
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what is ichthyology?
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the study of fish
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what is the smallest known fish? the largest?
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smallest: Pandaka pygmaea (of the philippenes)
largest: whale shark |
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where do most fish live?
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on or near the continental shelf
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in 1978, a research group lowered baited traps and a camera through the Ross Ice Shelf to a depth of 600 m below sea level to discover many new species of fish. Where is the Ross Ice Shelf located?
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in Antarctica
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what is a living fossil?
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any organism that was once thought to be extinct but was actually found to be alive
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what are 2 fish that can walk on land?
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catfish and lungfish; they can breathe air
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where are the nostrils of most fish located?
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in the front, behind the mouth opening
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can fish hear?
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yes, much in the same way as humans, but there are significant differences
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why are the electric eels called that?
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they generate a potential difference (voltage), sometimes up to 600 V to shock and immobilize prey
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what are Oteichthyes and Chondrichthyes
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Oteichthyes- bony fish (90% of fish)
Chondrichthyes- cartilignous fish (10%) |
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in what kingdom and phylum are fish?
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Kingdom Animalia and Phylum Chordata
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give an example of a fish that is bony and cartilaginous
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the coelacanth (a fish that was thought to be extinct at one time)
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what are some examples of Osteichthyes (bony fish)?
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tuna, sailfish, eels, cod, salmon
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what is a prehensile tail?
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a tail that can wrap around things, such as the tail of a seahorse
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what is the brood pouch?
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an opening in a male seahorse's abdomen where eggs are placed and eventually hatch
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what fish are called the "hitchhikers of the oceans"? why?
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remoras, because they take rides on sharks and other marine mammals in a mutualistic relationship where the remora eats parasites and leftover food that surrounds the host
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what spiny fish can inflate itself to as much as 3 times its normal size to ward off would be predators?
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the spiny pufferfish
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what are gobies?
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the largest group of predominantly ocean fish
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the four eyed fish. why should you know about it for Ocean Bowl?
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it has two eyes that are essentially split in two (hence, the name four eyed fish). the upper part is for seeing in the air; the lower part is for seeing underwater, allowing it to see both places at the same time
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what fish is often called one of the "ugliest sea creatures"?
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the anglerfish, because they are flabby, lump, with huge mouths filled with sharp long irregular teeth
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True or fAlse: Chondrichthyes have no swim bladders, so they must keep moving or else they will sink
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True
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what is the difference between cartilage and bone?
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cartilage is softer and more flexible than bone, but still strong enough to support the body
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what is the skin of a shark like?
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it looks smooth and slippery, but it's covered with sharp scales
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what is the largest shark?
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the whale shark
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what is considered to be the "least dangerous" shark? what is the "most dangerous"?
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least dangerous: the whale shark
most dangerous: the great white shark |
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each year, about how many people are attacked by sharks?
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100
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what kind of a shark was the one in _Jaws_ ?
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great white shark?
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T or F: it is estimated that in any given year, more people in the US are killed by pigs than sharks
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True
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what is the favorite prey of great white sharks?
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elephant seals
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why is the shark's immune system considered unique?
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sharks can ward off almost any disease, including cancer
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what are the Agnathans?
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lampreys and hagfish; jawless cartilaginous fish that grasp or suck
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T or F: hagfish and lampreys are parasitic
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True
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what phylum are flatworms?
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Platyhelminthes
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what phylum are ribbon worms?
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Nemertea
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what phylum are round worms?
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Aschelminthes
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what phylum are peanut worms?
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Sipuncula
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what phylum are arrow worms?
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Chaetognatha
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what phylum are segmented worms?
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Annelida
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what are the longest known worms?
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the ribbon worms
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how are comb jellies different from jellyfish?
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1. comb jellies cannot sting
2. comb jellies are divided into 8 sections by cilia 3. comb jellies move forward and backward; jellyfish can only move vertically |
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what are brachiopods?
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invertebrates with bivalve shells; a pair of arms inside its shell attached with tentacles used to capture food particles. ex: lampshells
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what are collar cells?
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flagellated cells that beat and draw in H2O from which they absorb and digest food
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what are amebocytes?
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transport cells in sponges that take food and other particles through the mesoglea to destination cells
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what is the osculum?
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excurrent pores in sponges through which wastes and water are expelled
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what is the spicule?
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a rigid structure that gives a sponge form and is made of silicon or CaCO3 (lime)
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what is spongin?
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flexible material in sponges that adds strength and rigidity
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describe asexual reproduction in sponges.
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it occurs by budding: gemmules (small mass of spicules and amebocytes) break off and regenerate the rest of the sponge
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describe sexual reproduction in sponges
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sperm cells pass out of an excurrent pore of one sponge and are picked up by an incurrent pore of another sponge; sperm cells are ingested by collar cells and transferred to amebocytes, which carry the sperm to egg, eventually forming a zygote. the zygote is released and it settles on the sea floor and grows
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how many cells layers does a hydra have?
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2, ectoderm and endoderm (mesoglea is the region in between)
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What large dolphin is the world's most widely distributed mammal?
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Killer whale
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what's the leopoard seal's main prey?
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penguins
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What small bird migrates from the Arctic to the Antarctic and spends the most anmount of time in the sun?
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Arctic Turn
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what's the largest predatory sea fish?
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great white shark
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T or F: all life in the sea is ultimately dependant upon sunlight for energy
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F; HTV communities
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what brightly colored, orange and white fish are adapted to live among anemones?
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clownfish
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what invertebrates swim strong enough to be classified as nekton?
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squid
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which shark holds the record for being the world's largest fish
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whale shark
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what fish escapes predators by gliding with pectoral fins?
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flying fish
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do non floating non swimming oranisms dwell in the pelagic or benthic zone?
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benthic
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T or f: animals that are attached to the sea floor are typically carnivrous
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false; filter feeders
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which whale produces the longest, most complex sound sequence of any animal
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humpback whale
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what small mangrove dwelling fish knocks insects out of the water by spitting water at them?
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archer fish
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T or F: when O2 becomes low on seawater, most organisms come to breathe air
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false
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