test your knowledge

[Bigairmxman]

these are some example exam questions for my Ichthyology class and by no means will i be turning in what you all say, i thought i would just share and see how much u guys know... check it out

 

[Bigairmxman]

anyone?

 

[Bud8Fan]

Can I just copy your answers ?

 

[Bigairmxman]

yea sure y not

 

[Euge]

thats pretty hardcore. i know probably.... 0% of the answer.

 

[fishnutham]

oh oh oh i got it oh never mind ..............

 

[RadleyMiller]

I could BS my way through most of that, but I need to BS my way through a research paper right now.

 

[milkman407]

1.) three distinguishing traits are they appeared in that period, they were fossils, they were fish LMAO!

 

[rallysman]

Pretty tough stuff!

 

[Bigairmxman]

1. no air filled swim bladder, heterocercal tail,teeth regrow, hyostilic or amphystylic jaws, placoid scales


buoyancy control - oil filled liver
Swim control - heterocercal tail
Body covering - placoid scale, light weight protective, mods for protection
prey detection - appullare of lorenzini
Reproduction - internal fertilization

cartilaginous skeleton, placoid scales, ram ventilation efficient osmoregulated(nitrogen), large rectal gland, internal fertilization, large young