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What were the 1st vertebrates? |
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Definition
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Where does the Nerve cord end? |
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Definition
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The brain is protected by.. ? |
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Definition
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What are the 3 types of fishes? |
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Definition
-Jawless
-Cartilaginous
-bony |
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What are two types of Agnatha? |
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Definition
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What is the difference between Hagfishes and Lampreys? |
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Definition
Hagfishes live in burrows, while Lampreys live attached to "prey". |
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What make Hagfish and Lampreys similar? |
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Definition
They are both jawless and look like eels. |
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What are types of cartilaginous fishes? |
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Definition
-Sharks
-Rays
-Skates
-Ratfishes |
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Term
What kind of scales do Cartilaginous fish have? |
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Definition
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What shape body do sharks have? |
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Definition
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How many gills do sharks have? |
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Definition
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How many Dorsal fin(s) do sharks have? |
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Definition
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Definition
From Deep water to the tropics |
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Term
Sharks have a well developed ________ fin. |
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Definition
Caudal fin
-Heterocercal: upper lobe is longer than the lower lobe. |
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What is the name of the smallest shark? |
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Definition
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What is the largest shark? |
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Definition
Whale shark
-The largest of all fishes
-filter feeders |
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Term
What kind of fins do Rays and Skates have? |
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Definition
Two very large flattened Pectoral fins: Flat and expanded |
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Term
How many pairs of gills so Rays and Skates have? |
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Definition
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Definition
Living close to the floor of the sea |
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Definition
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What are some types of Rays? |
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Definition
-Stingrays
-Eagle rays
-Bat rays
-Cow-nosed ray
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Term
What part of the ray stings? |
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Definition
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Term
Electric rays can shock up to how many volts? |
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Definition
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Term
How do Skates give birth? |
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Definition
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Term
What kind of fish is a ratfish? |
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Definition
Catilaginous fish
Sharks closest relative |
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Term
How many pairs of gills do ratfishes have? |
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Definition
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Definition
Mostly the bottom of the ocean. |
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Term
What are the two different types of scales bony fish have? |
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Definition
Cycloid scales and Ctenoid scales
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Term
What is an Operculum?
Hint: Bony fish |
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Definition
Gill cover; flap of body plates and tissue that protects gills |
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Term
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Definition
A gas filled sac above stomach |
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Term
What is the function of a swim bladder? |
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Definition
-Adjust Buoyance
-Compensates for heavy skeleton |
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Term
What makes a terminal mouth? |
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Definition
Teeth attached to the jaw bone |
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Definition
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What is warning coloration used for? |
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Definition
Meant to advertise:-Dangerous
-Poisonous
-Taste bad |
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Term
What is Cryptic coloration? |
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Definition
Blending with the environment to decieve |
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Term
What is Disruptive coloration? |
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Definition
Using color stripes, bars, or spots to breakup the outline.
(Common in coral reef fishes.) |
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Definition
Distinctive color pattern, disguise for open water
(Silver bellies and dark backs) |
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Term
What are the colors for concealment? |
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Definition
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Term
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Definition
-Obtain food
-escape
-Find mates
-Flush gills with water
Most fish swim with a side-to-side motion of body/tail |
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Term
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Definition
They extract oxygen from water flowing over gills. |
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Term
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Definition
Modified gill slits
For sharks, there is a pair of round openings behind each eye
It allows fish to take in water when their mouth is closed. |
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Term
Oxygen is carried by what? |
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Definition
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Term
What makes up the Central Nervous System? |
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Definition
The brain and Spinal cord |
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Term
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Definition
Sensory cells in nostrils, used for smelling
Sharks: smell blood
Salmon: smell to find the stream where they were born |
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Term
What are fishes taste buds sitting on? |
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Definition
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Term
What is the Lateral Line? |
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Definition
A system of canals that run along the body, sensitive to vibrations. |
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Term
What are schools of fish and how are they helpful in the underwater world? |
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Definition
A school is a well coordinated group of indiviuals.
It's good for protection, increased swimming efficiency, feeding, and mating |
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Term
What is the difference between anadromous fish and Catadromous fish? |
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Definition
Anadromous fish:Migrate to fresh water from sea water to spawn.
Catadromous fish: Mirate to the sea from fresh water to breed. |
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Term
Simultaneous Hermaphrodites |
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Definition
Produce sperm and eggs at same time |
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Term
Sequential hermaphrodites |
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Definition
An animal that change sexes thoughout their lives. |
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Definition
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Definition
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Definition
Spawn eggs, Large Yolk sac |
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Definition
Eggs develop inside female.
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Definition
Absorb nutrients from the walls of the mother's reproductive tract |
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