Help!

[MarkVIII93]

I need help with my homework! Lets see if any of you can help!

1. Name 2 phyla that have gill slits.

2. What purpose do gill slits serve?

Those are the only two that I cannot seem to find in my notes!

 

[pepperman]

partial answer to part 1. Fish

2. They help fish to breath.

 

[Nakoa]

the gill slits are for the fishes breathing. i think they exhale the water through them.

 

[SurfjaxLS]

Part 1.
Chordata
Hemichordata
(check the second one online, this is from memory)
Part 2.
They maximize surface of gas exchange to allow the most intake of oxygen, and the most release of carbon dioxide and other waste products.

 

[ekenkade]

how the hell did you remember that?

 

[SurfjaxLS]

I took bio last year. I'm only 18.

 

[ekenkade]

that could be why, i'm 51 i dont remember anything but what i learned in trucker school and the basics of everything else
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20 years in the cab and damn proud!