Shared Flashcard Set

Details

Chapter 10 Marine Fishes
Marine Fishes
55
Biology
Undergraduate 1
03/03/2015

Additional Biology Flashcards

 


 

Cards

Term
What were the 1st vertebrates?
Definition
Fishes
Term
Where does the Nerve cord end?
Definition
The brain
Term
The brain is protected by.. ?
Definition
The Skull
Term
What are the 3 types of fishes?
Definition

-Jawless

-Cartilaginous

-bony

Term
What are two types of Agnatha?
Definition

-Hagfishes

-Lampreys

Term
What is the difference between Hagfishes and Lampreys?
Definition
Hagfishes live in burrows, while Lampreys live attached to "prey".
Term
What make Hagfish and Lampreys similar?
Definition
They are both jawless and look like eels.
Term
What are types of cartilaginous fishes?
Definition

-Sharks

-Rays

-Skates

-Ratfishes

Term
What kind of scales do Cartilaginous fish have?
Definition
Placiod scales
Term
What shape body do sharks have?
Definition
Fusiform
Term
How many gills do sharks have?
Definition
5-7 gills
Term
How many Dorsal fin(s) do sharks have?
Definition
2
Term
Where do sharks live?
Definition
From Deep water to the tropics
Term
Sharks have a well developed ________ fin.
Definition

Caudal fin

 

-Heterocercal: upper lobe is longer than the lower lobe.

Term
What is the name of the smallest shark?
Definition

Spined pygmy shark

25cm

Term
What is the largest shark?
Definition

Whale shark

-The largest of all fishes

-filter feeders

Term
What kind of fins do Rays and Skates have?
Definition
Two very large flattened Pectoral fins: Flat and expanded
Term
How many pairs of gills so Rays and Skates have?
Definition

5 pairs of gills.

 

 

Term
Demersal means?
Definition
Living close to the floor of the sea
Term
How do Rays give birth?
Definition
Live birth
Term
What are some types of Rays?
Definition

-Stingrays

-Eagle rays

-Bat rays

-Cow-nosed ray

 

Term
What part of the ray stings?
Definition
The spine.
Term
Electric rays can shock up to how many volts?
Definition
200 Volts
Term
How do Skates give birth?
Definition
They lay egg cases
Term
What kind of fish is a ratfish?
Definition

Catilaginous fish

 

Sharks closest relative

Term
How many pairs of gills do ratfishes have?
Definition
1
Term
Where do ratfishes live?
Definition
Mostly the bottom of the ocean.
Term
What are the two different types of scales bony fish have?
Definition

Cycloid scales and Ctenoid scales

 

 

 
 
Term

What is an Operculum?

Hint: Bony fish

Definition
Gill cover; flap of body plates and tissue that protects gills
Term
What a swim bladder?
Definition
A gas filled sac above stomach
Term
What is the function of a swim bladder?
Definition

-Adjust Buoyance

-Compensates for heavy skeleton

Term
What makes a terminal mouth?
Definition
Teeth attached to the jaw bone
Term
What are Chromatophores?
Definition
Colored pigment cells
Term
What is warning coloration used for?
Definition

Meant to advertise:-Dangerous

-Poisonous

-Taste bad

Term
What is Cryptic coloration?
Definition
Blending with the environment to decieve
Term
What is Disruptive coloration?
Definition

Using color stripes, bars, or spots to breakup the outline.

 

(Common in coral reef fishes.)

Term
What is Countershading?
Definition

Distinctive color pattern, disguise for open water

 

(Silver bellies and dark backs)

Term
What are the colors for concealment?
Definition
Red or black
Term
Why do fish swim?
Definition

-Obtain food

-escape

-Find mates

-Flush gills with water

 

Most fish swim with a side-to-side motion of body/tail

Term
What do gills do?
Definition
They extract oxygen from water flowing over gills.
Term
What are spriracles?
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.

Term
Oxygen is carried by what?
Definition
Hemoglobin
Term
What makes up the Central Nervous System?
Definition
The brain and Spinal cord
Term
What are Olfactory sacs?
Definition

Sensory cells in nostrils, used for smelling

 

Sharks: smell blood

Salmon: smell to find the stream where they were born

Term
What are fishes taste buds sitting on?
Definition
Barbels
Term
What is the Lateral Line?
Definition
A system of canals that run along the body, sensitive to vibrations.
Term
What are schools of fish and how are they helpful in the underwater world?
Definition

A school is a well coordinated group of indiviuals.

It's good for protection, increased swimming efficiency, feeding, and mating

Term
What is the difference between anadromous fish and Catadromous fish?
Definition

Anadromous fish:Migrate to fresh water from sea water to spawn.

 

Catadromous fish: Mirate to the sea from fresh water to breed.

Term
Simultaneous Hermaphrodites
Definition
Produce sperm and eggs at same time
Term
Sequential hermaphrodites
Definition
An animal that change sexes thoughout their lives.
Term
Protandry
Definition
Male first, then female
Term
Protogyny
Definition
Female first, then male
Term
Oviparous
Definition
Spawn eggs, Large Yolk sac
Term
Ovoviviparous
Definition

Eggs develop inside female.

 

Term
Viviparous
Definition
Absorb nutrients from the walls of the mother's reproductive tract
Supporting users have an ad free experience!