part A biology test

Question 1

what phylum are we talking about

Answer 1

chordate

Question 2

what is the subphylum that we belong too

Answer 2

vertebrates

Question 3

where is the nerve chord on a chordate

Answer 3

dorsal side

Question 3

what are the three characteristiscs of chordates

Answer 3

they have a notochord, nerve chord, and pharyngial slits

Question 4

what are pharangeal slits

Answer 4

openings in the pharynx (throat region) that are a defining feature of all chordates, including humans.

Question 5

what are agnatha

Answer 5

jawless fish that have two major groups

Question 5

what is a notochord

Answer 5

basically a rod that supports chordates

Question 5

what are the two major groups that agnatha have (examples)

Answer 5

myxini (hagfish), and cephalaspidomorphi (lampreys)

Question 6

where was the notochord on the simple vertebrates

Answer 6

on the ventral side

Question 7

how come the two agnatha are more than worms

Answer 7

because of the vertebrates and notochords.

Question 8

where does food go in the fish

Answer 8

mouth, esophagus, stomach, intestine, anus

Question 9

what are the finger like projections that make enzymes in fish

Answer 9

pyloric cacea

Question 10

what is the other structure that helps make bile to digest food in fish

Answer 10

liver

Question 11

what stores bile

Answer 11

gallbladder

Question 11

what is that empty space in the fish

Answer 11

air bladder

Question 11

what does the airbladder do in fishq

Answer 11

helps with buoysncy

Question 12

whats the thing that kinda small in males and larger in females in fish

Answer 12

gonads

Question 13

where is the kidney in fish

Answer 13

the dark like plastered against the vertebral column

Question 14

where is the urine stored in fish

Answer 14

in the urinary bladder

Question 15

what does the kidney do in fish

Answer 15

make urine

Question 16

how do the urine and gametes leave the fish

Answer 16

go out uregenital opening

Question 17

how many chambered hearts do fish have. which one

Answer 17

two, ventricle and atrium

Question 18

what type of support does the anterior dorsal fin have

Answer 18

spinal supports

Question 19

what is the back fin called

Answer 19

coddle fin

Question 20

what type of support does the posterior dorsal fin have

Answer 20

soft rays

Question 20

what is the one fin next to anus callled

Answer 20

anal fin

Question 21

what is the fins on the bottom

Answer 21

pelvic and pectoral fins

Question 22

where does water go in fish

Answer 22

in mouth through gills and out the operculum

Question 23

what does gill raker do

Answer 23

filter particles so that it doesnt damage hundreds of filaments

Question 24

what are the currents in gill filaments called

Answer 24

counter currents

Question 25

why is the fish countershading

Answer 25

better camaflouge top is black bottom is white

Question 26

what does ectothermic mean

Answer 26

they don't regulate theeir own heat

Question 27

what does ecto mean

Answer 27

outside

Question 28

what are humans in general endo or ectothermic

Answer 28

endothermic, warm blooded

Question 29

what class do forgs belong to

Answer 29

amphibia

Question 30

what does amphibia mean

Answer 30

double life

Question 31

stages of metamorphisis for frog

Answer 31

hind legs form, lungs, front legs,

Question 32

how do tadpoles move around with no legs

Answer 32

coddlefin

Question 33

what do forgs breathe through

Answer 33

gills

Question 34

what are the little hols on the side of frogs called

Answer 34

spiracles

Question 35

what forms from spiracles in frogs

Answer 35

operculum

Question 36

what unique baout forg skin

Answer 36

very thin

Question 37

why is frog skin thin

Answer 37

so that there is more gas regeneration

Question 37

what is amplexis

Answer 37

when frog squeezes eggs out

Question 38

whats it called when egg is outside body

Answer 38

oviporous

Question 39

what does ovi and viv mean

Answer 39

egg life

Question 40

what is estivation

Answer 40

when frogs cool in mud becuase it is too hot outside

Question 41

how do frog eggs compare to toad eggs

Answer 41

frog eggs are all jammed together while toad eggs are in a long strand

Question 42

how do frogs catch prey

Answer 42

with tounge stuck at front of mouth they extend their tongue far out

Question 43

what is viviporous

Answer 43

the babies develop inside and then there is a live birth.

Question 43

what is the mesentary

Answer 43

helps hold the intestine and other organs from wall and make them stable

Question 44

what does the jelly coat do for frog eggs

Answer 44

t to enhance their size (so they won't be as easily eaten), to protect them against bacteria, and to attract and activate sperm.

Question 44

what chambers do the frog have. and how many

Answer 44

three two atria and one ventricle.