The heart of the crayfish pumps to circulate the blood. The blood flows through the open cavities as there is a minimum of tubing in the crayfish. The circulation of the blood aerates and purifies it.
A crayfish has one heart that contains two chambers
humans hearts are in their chest but crayfishs hearts are in their but
Crayfish
Birds and mice are vertebrates, they have warm bodies, hearts, muscles, lungs, eyes (two each), 4 limbs, digestive systems (some like the same foods)...
My older crayfish died and my littler crayfish has not yet how do/can they die?
Crayfish are known as both crayfish and yabbies in Australia. "Yabbies" are freshwater crayfish, often found in rivers, creeks and dams in rural areas.
Do crayfish have tarritoris
protects the crayfish
Crayfish are omnivores.
Crayfish are related to small lobsters. Here is a link for pictures of crayfish. http://mackers.com/crayfish/pics.htm
Crayfish are invertebrates.
the crayfish resembles a lobster