Fish

Front 1

super class of jawless vertebrates, no scales or paired fins lack vertebrae

Back 1

Agnatha

Front 2

larval form after egg of lamprey. Much different from adult. After 4-7 years, it changes into adult.

Back 2

ammocoete

Front 3

feature of chordates. supplies most of the propulsive force in swimming.

Back 3

caudal fin

Front 4

attaches caudal fin. provides most of the forward propulsion in sharks and other fishes

Back 4

caudal peduncle

Front 5

few large, plate like teeth. have upper jaws fused to skull.

Back 5

chinaeras

Front 6

fishes with cartilaginous skeletons. no swim bladder or lung, spiral valve in intestine. Male with pelvic claspers. Teeth not fused to jaw.

Back 6

Chondrichthyes

Front 7

behind pelvic fin, transfers sperm from cloaca into oviduct of female.

Back 7

clasper

Front 8

receives feces and gametes.

Back 8

cloaca

Front 9

have lungs, lobed pectoral fins. spiral valve in intestine.

Back 9

coelacanth

Front 10

when the caudal fins taper posterially to a point.

Back 10

diphycercal

Front 11

jawless fish in class myxini. use toothed like snail radulas for tongues to burrow into carcass and feed from within.

Back 11

hagfish

Front 12

fins with lobes of different sizes. can change the direction of thrust for diving climbing or turning.

Back 12

heterocercal

Front 13

canal lying beneath the lateral line and curving around the head. Made up of several receptors detecting electrical activity of prey.

Back 13

lateral line organ

Front 14

subclass dipheusti. have one or two lungs with which they can breath air.

Back 14

lungfish

Front 15

rectangular cases which eggs of rays are released within.

Back 15

mermaids purse

Front 16

sperm are transported to cloaca from testis via ----------- which also drain kidneys.

Back 16

mesonephric ducts

Front 17

kidney in adult fishes. develop into epididymis, vas deferens, of secondary importance in receiving feces and gametes.

Back 17

mesonephric kidney

Front 18

mechanoreceptors

Back 18

neuromasts

Front 19

maintainence of an overall density that is nearly the same as that of the water

Back 19

neutral buoyancy

Front 20

lampreys use to bore through the skin to feed on blood

Back 20

oral disc

Front 21

urea and methylamines-retained in high concentrations in body fluid, where they serve as osmolytes that help maintain an osmotic concentration comparable to that of the surrounding water.

Back 21

osmolytes

Front 22

respond to gravity and low-frequency sound

Back 22

otolith organ

Front 23

eggs are enclosed w/in a tough capsule in which the embryo develops externally

Back 23

oviparous

Front 24

egg is retained inside oviduct during hatching, w/out any other support from mother

Back 24

ovoviviparous

Front 25

have backward pointing spines that reduce hydrodynamic drag in water.

Back 25

placoid scale

Front 26

pelagre sharks use in which water is forced into open mouth and past hte gills and out operculi.

Back 26

ram ventilation

Front 27

ions that tend to acumulate in the body fluids from the environment are excreted mainly by the ------------.

Back 27

rectal glands

Front 28

sucking mouth, nasal sac not connected to pharynx , seen prs. of gill pouches.

Back 28

sea lamprey

Front 29

inside inner ears of sharks, sense acceleration of the body

Back 29

semicircular canals

Front 30

cavity which water flows through when mouth is closed

Back 30

spiracles

Front 31

in intestine, slows the passage of food and increases the surface area for digestion and absorption

Back 31

spiral valve

Front 32

sharks use to maintain neutral buoyancy, low density fat found in large liver

Back 32

squalene

Front 33

toxic compound to amocoetes, damages gills

Back 33

TFM

Front 34

born alive

Back 34

viviparous