Some insects use siphoning, as if sucking through a straw, like moths and butterflies. This long mouth-tube that they use to suck up the nectar of the flower is called a proboscis.
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).
The clam has two siphons excurrent and incurrent
Straw xD
the inhalent and the exhalent siphons
siphons. Siphons are specialized structures that allow bivalves to intake and expel water for feeding, respiration, and reproduction.
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.
it's an insect it can survive for three monyhs without food
no
Butterflies obtain food through a special mouth part that acts as a straw. They use this straw to drink nectar from flowers.
Immobility is not a problem for oysters because they can use their siphons to direct water and food in and out of its shell.
through a necter straw
they use a straw