They are located on the posterior side. The incurrent takes water in, the excurrent puts it out. do u know mrs sheetz??? this is an x-act question from her lab
The clam has two siphons excurrent and incurrent
They are located on the posterior side. The incurrent takes water in, the excurrent puts it out. do u know mrs sheetz??? this is an x-act question from her lab
They are located on the posterior side. The incurrent takes water in, the excurrent puts it out. do u know mrs sheetz??? this is an x-act question from her lab
the inhalent and the exhalent siphons
The clam has two siphons. The excurrent siphon (which expels water and waste out of the clam) and the incurrent siphon (which brings oxygen and food and water into the clam).
Porifera, also known as sponges, are filter feeders that lack a true mouth or gut. They filter microscopic organisms and particles from the water to obtain nutrition through specialized cells in their bodies.
They have a hatchet-shaped foot that allow them to move, incurrent and excurrent siphons through which water passes and then they filter feed in that way, and powerful abductor muscles that draw the shell together to protect the clam's soft body.
Generally the bivalves are filter feeders. As you look at a bivalve in the water and undisturbed one will see a slight protrusion of its siphons (incurrent and excurrent). Water enters the creature and passes over under and through the gills. These are covered with cilia which conduct the bits of detritus (microscopic organic debris in the water) to the "mouth" and into the digestive system where it will be hydrolyzed (digested) and absorbed and used as needed.
The siphon is part of the mantle of the mollusc, and the water flow is directed to (or from) the mantle cavity. A single siphon occurs in some gastropods. In those bivalves which have siphons, the siphons are paired.
Fist tell me what they are then ill tell you.
Siphons can be used as a form of locomotion. Water goes into the siphon and shoots out and acts as a form of jet propulsion, directing the squid in the way it wants to go.
A siphon is found in octopus, squid, and in some snails and clams. The function is movement, feeding, respiration, and reproduction. In bi-valves, the siphons are paired. In cephalopods, there is a single siphon or funnel which is known as a hyponome.