Q:

What sort of digestive system does a crayfish have?

A:

Crayfish and their relatives, lobsters, crabs and shrimp, have similar digestive systems that feature two-part stomachs. Called malacostracans, these animals consume food with their mouths and pass the food through their stomachs and intestines before finally expelling it through the anus, according to the University of Michigan's Animal Diversity Web.

Inside the stomach, crayfish have a structure called a gastric mill. The gastric mill helps to grind food items into small pieces. Crayfish consume a wide variety of foods, including vegetative debris, fish and aquatic invertebrates. Crayfish capture food with their large claws before lowering it to their mouths, where they consume it.


Is this answer helpful?

Similar Questions

  • Q:

    How does the digestive system of a cnidaria work?

    A:

    Cnidarians have a digestive system with only one opening through which both digested and undigested material passes. This type of system is called a gastrovascular cavity. Cnidarians use their stinging organelles to stun and kill their prey. Once captured, the food is passed into the opening of the gastrovascular cavity.

    Full Answer >
    Filed Under:
  • Q:

    How do crayfish breathe?

    A:

    According to the Australian Museum, crayfish breathe through their gills. Their feather-like gills, which are protected by the carapace, branch off from the base of their legs.

    Full Answer >
    Filed Under:
  • Q:

    What do king crabs eat?

    A:

    King crabs' diets vary with their age and the depth at which they live in the ocean. Larval crabs float around and eat plankton, juvenile crabs fall to the ocean floor and eat other organisms that live there, and adults eat worms, bivalves, echinoderms and algae.

    Full Answer >
    Filed Under:
  • Q:

    What is a grasshopper's digestive system?

    A:

    The grasshopper's digestive system is the system of organs and glands responsible for breaking down food for use by the body. It consists of the foregut, or stomodaeum; the midgut, or mesenteron; and the hindgut, or proctodaeum.

    Full Answer >
    Filed Under:

Explore