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RNR 4145 Exam 1 Questions & Answers 2024/2025
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RNR 4145 Exam 1 Questions & Answers 2024/2025
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RNR 4145 Exam 1 Questions & Answers2024/2025
poikilotherms - ANSWERScold blooded fish; means their body temperature matches their environment;
warm muscular heat travels through blood to heat important organs (like the brain)
gills - ANSWERSmostly internal; some external larval and juvenile fish
fins - ANSWERSsupported by internal structures; organ consisting of membrane supported by rays, or
little bony or cartilaginous ossicles, serve to create balance and propel the organism in water
fish - ANSWERSprimarily live in the water; not marine mammals; some are not strictly in water - some
can breathe in moist environments without submersion
hypural bones - ANSWERSlarger where tail starts
lepidotrichia - ANSWERSsmaller bones at tip of tail
29000 species - ANSWERSmost numerous vertebrate
515 - ANSWERSdescribed fish families
62 - ANSWERSorders
cyprinidae - ANSWERS_ family; minnows; mostly freshwater
gobiidae - ANSWERS_ family; gobies
, chichlidae - ANSWERS_ family; cichlids
characidae - ANSWERS_ family; characins; all freshwater
loricariidae - ANSWERS_ family; sucker mouth armored catfish; mostly freshwater
balitorde - ANSWERS_ family; river loaches; can breathe air through their intestines
serranidae - ANSWERS_ family; sea basses; saltwater
labridae - ANSWERS_ family; wrasses; normally colorful species; saltwater
scorpaenidae - ANSWERS_ family; scorpion fishes; saltwater
tropics - ANSWERShighest fish diversities are found in the _
indo-west pacific - ANSWERShighest saltwater fish diversity found in the _ (west pacific, indian ocean,
red sea)
southeast asia - ANSWERShighest freshwater fish diversity found in the _
fishes - ANSWERSmany structures and ways of life in higher vertebrates originated in _; basic ground
plan, internal fertilization; intrauterine nourishment, including placenta, live birth, learning, memory
fusiform - ANSWERStorpedo-shaped, streamline configuration with an elliptical cross section and narrow
caudal peduncle; fast fish
compressiform - ANSWERSsimilar to fusiform, but laterally compressed (sunfishes, flounder)
depressiform - ANSWERSflattened dorsoventrally (rays)
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