TREE THINKING
TWO DESCENDANTS OF A SINGLE NODE ARE CALLED
SISTER GROUP OR TAXA
THIS JAWLESS FISH PRODUCES MUCUS/SLIME AS A DEFENSE MECHANISM
HAGFISH
BODY SHAPE THAT RESEMBLES A TORPEDO
FUSIFORM
WHAT TYPE OF SCALES ARE FOUND IN CARTILAGINOUS FISHES LIKE SHARKS AND RAYS?
PLACOID
THE EELS WE CAUGHT ON THE CRUISE BELONG TO THIS ORDER
ANGUILLIFORMES
GROUP THAT INCLUDES AN ANCESTRAL LINEAGE AND ALL OF ITS DESCENDANTS
CLADE/MONOPHYLETIC GROUP
LAMPREYS HAVE A SINGLE _____ TOP OF THEIR HEAD THAT THEY USE FOR CHEMORECEPTION
NOSTRIL
THIS FIN IS ALSO KNOWN AS THE TAIL FIN, THIS IS THE PRIMARY PROPULSION SOURCE, DRIVING THE FISH FORWARD THROUGH THE WATER
CAUDAL FIN
THESE SCALES FIRST APPEARED IN ANCIENT FISHES OVER 400 MILLION YEARS AGO
GANOID
THIS ORDER CONTAINS INDIVIDUALS LIKE THE GREAT WHITE SHARK AND THE GOBLIN SHARK
LAMNIFORMES
_____ OCCURS WHEN TWO POPULATIONS ARE ISOLATED FROM ONE ANOTHER SO THAT THEY ARE NO LONGER ABLE TO EXCHANGE GENES VIA SEXUAL REPRODUCTION
LINEAGE SPLITTING/CLADOGENESIS/SPECIATION
HAGFISH TEETH ARE MADE OF THIS SUBSTANCE
KERATIN
MEASURE OF LENGTH THAT ACCOUNTS FOR THE DISTANCE BETWEEN THE TIP OF THE SNOUT TO THE END OF THE HYPURAL PLATE
STANDARD LENGTH
WE CAN FIND THIS TYPE OF TEETH IN NEEDLE FISHES
VILLIFORM
THIS ORDER CONTAINS THE FLASHLIGHT FISHES
MYCTOPHIFORMES
A TRAIT THAT APPEARS SIMILAR IN DIFFERENT SPECIES BUT IS NOT DERIVED FROM A COMMON ANCESTOR
HOMOPLASY
LANCELETS ARE _____ (GROUP NAME) THAT SPLIT FROM CHORDATES AROUND 520 MILLION YEARS AGO
CEPHALOCHORDATA
THE TAIL OF A TUNA CAN BE CLASSIFIED AS
LUNATE
THESE TYPE OF TEETH ARE FLAT AND ARE USED FOR GRINDING AND ARE NOT SUITED AT THE THROAT
MOLARIFORM
THE CHIMERAS BELONG TO THIS ORDER
CHIMAERIFORMES
SPLITTING CAUSED BY LINEAGE SELECTION FOR AN ECOLOGICAL SPECIALIZATION
SYMPATRIC
IN WHICH FISH GROUP DID TRUE JAWS FIRST EVOLVE?
PLACODERMS
IN FISH FINS THE ____ ARE MADE OF BONY SEGMENTS AND CAN BE BRANCHED
LEPIDOTRICHIA
THIS SCALE LAYER CONTAINS COLLAGEN FIBERS. IT GIVES THE SCALE FLEXIBILITY AND STRENGTH, ALLOWING FOR BODY MOVEMENT
MIDDLE LAYER
IN SOUTHERN CALIFORNIA'S CURRENT SYSTEM, THE ABUNDANCE OF MESOPELAGIC FISH IS DOMINATED BY THIS GENUS
CYCLOTHONE