Marine Biology Chapter 12

Front 1

The Flexible connective tissue found in sharks is

Back 1

cartilage

Front 2

The flap of tissue that covers a bony fish's gills is the

Back 2

operculum

Front 3

Openings on the sharks head that aid in breathing are the

Back 3

spiracles

Front 4

The __________ along a fish's body detects sound vibrations.

Back 4

lateral line organ

Front 5

Bony fishes maintain buoyancy with their

Back 5

swim bladders

Front 6

Phylum Chordata Characteristics

Back 6

Hollow dorsal nerve cord

Notocord

Pharyngeal gill slits

Vertebrates

Front 7

The Sea Squirt, Lancelet, Acron Worm are all the the phylum

Back 7

Protochordates

Front 8

Name something from the class Agnatha

Back 8

Jawless fish like the sea lamprey and hagfish

Front 9

The sea lamprey and the hagfish are both _____________

Back 9

Parasitic

Front 10

How does the sea lamprey feed?

Back 10

Uses sharp teeth and rasping tongue to burrow through flesh

Front 11

How do hagfish eat

Back 11

release slim as defense mechanism

Front 12

Characteristics of the class Condrichytes

Back 12

Placoid scales

Gill slits are visible and located ventrally

Spiracles-breathing holes

Ventral mouth

Fins more rigid that bony fish

Front 13

Name something in the class condrichytes

Back 13

cartilagenous fishes like sharks, skates and rays

Front 14

Skates and rays live where and eat what

Back 14

bottom dwellers that eat crustaceans and mollusks

Front 15

How is reproduction in sharks differant from other fish

Back 15

Internal fertilization

Male sharks have claspers that transfer sperm

some internal development with live birth

some external with mermaids purse

Front 16

Characteristics of Class Osteichthyes

Back 16

Bony skeleton, vertebra

scales secret mucus coating

Front 17

What is the purpose of the scales secreting mucus coating

Back 17

acts as barrier to infection

reduces friction so fish glide through water easier

Front 18

Bony Fish Life Functions Acronym

Back 18

Bony Fish Live Beneath the Deep Sea Right?

Front 19

Bony Fish Life Functions

Back 19

Breathing

Food Getting

Locomotion

Buoyancy

Digestion and transport

Sensitivity

Reproduction

Front 20

acorn worm

Back 20

wormlike protochordate; adult has dorsal nerve cord and gill slits

Front 21

ampullae of Lorenzini

Back 21

in shark, nerve receptors in tiny pores in snout which detect electric fields in other animals

Front 22

bony fishes

Back 22

have bony skeleton loose scales on skin, swim bladder

Front 23

cartilage

Back 23

the flexible connective tissue composed of cells and protien found in sharks

Front 24

cartilagenous fishes

Back 24

have cartidge skeletons, gill slits, placiod scales

Front 25

chordates

Back 25

animals having dorsal nerve cord, notocord, pharyngeal gill slits at some stage of development includes all photochordates and vertebrates

Front 26

claspers

Back 26

in male shark pair of organs between pelvic fins that transfer sperm

Front 27

ectothermic

Back 27

term for animal in which body temperature is determined by the external environment

Front 28

gill slits

Back 28

in cartliaginous fishes visible openings for breathing

Front 29

jawless fishes

Back 29

parasitic jawless retain larval notocord and lack true scales

Front 30

lancelet

Back 30

a fish like photochordate adult retains all three primative chordate traits

Front 31

lateral line organ

Back 31

line of sensative sound receptors along each side of a fishes body

Front 32

nekton

Back 32

term for marine animals that have the ability to swin

Front 33

operculum

Back 33

in snails thick pad of tissue that closes shell opening over foot in bony fish flap of tissue that covers gills

Front 34

pelagic

Back 34

term for open water species of fish

Front 35

placoid scales

Back 35

in cartalageouns fish scales are tiny teeth imbedded deep in skin

Front 36

protochordates

Back 36

primative invertabrate -tunicate, lanclet, and acorn worm

Front 37

spawning

Back 37

in bony fish the release of gamates during external fertilization

Front 38

spiracles

Back 38

in cartalageouns fish breathing holes on dorsal side behind each eye

Front 39

swim bladder

Back 39

in boney fish internal gas filled organ that lets a fish adjust it's level in the water

Front 40

tunicates

Back 40

sessile protochordates larval stage has primitave chordate traits

Front 41

vertebrates

Back 41

higher chordates all have a skeleton, backbone, skull and brain