i think it helps open and close the gills on a fish ------------ don't be ridiculous; that's an immanence front. a google of "function isthmus," quotes included, returns this Q! So you might provide more detail. My roomie and I are arguing whether it is the part of a graph in mathematics that would be...functional?
GillsThe gills perform the same function.
The function of gills on a mushroom is to hold and release the spores that a mushroom produces.
Gills are specialized organs adapted for extracting oxygen from water, not air. They are not efficient for breathing on land due to their structure and function. Animals with gills typically rely on other respiratory adaptations, such as lungs or skin, to breathe air when out of water.
to maximize the area where the spores are produced and also to help hold the cap of the mushrooms.
The gills help it breathe.
to BREATH!
The primary function of external gills in aquatic animals is to exchanges gases. However, gas exchange is more difficult with external gills.
Lung and gills help animals take in oxygen from their environment. Lungs are found in terrestrial animals and allow for the exchange of oxygen and carbon dioxide during respiration, while gills are found in aquatic animals and perform a similar function by extracting oxygen from water.
Fish breathe with the help with gills.
the gills help the squid breathe
Gill slits in sharks and rays help to funnel water into the gills, which empty into the pharynx and eventually the lungs.