2. antennae. Question Do crayfish have to eat elodea? Crayfish - Ventral View 1. eye. These itty bitty structures cover the crayfish body and help it to sense it's surroundings. 3. shelter. answer choices . Equipped with thousands of sensory bristles, some sensitive to chemicals and the others to touch, crayfish can smell, feel, and hear acutely, even though they are completely covered in a hard shell. The jointed structure in the front of the crayfish that can pinch. This helps a crayfish stay balanced or swim backwards really fast when it is scared. What are the two main functions of the maxilla? A crayfish has two of these to help it see. In crayfish, the hourglass pattern on the dorsal surface of the cephalothorax arolium A pad-like median lobe between the tarsal claws. Equipped with thousands of sensory bristles, some sensitive to chemicals and the others to touch, crayfish can smell, feel, and hear acutely, even though they are completely covered in a hard shell. They are nocturnal and tend to stay in or under a live rock or in the tank substrate. How many species of them are there? pincers. answer choices . What is the function of the sensory bristles? Crayfish are aquatic creatures and have several bristles on their surface which are sensitive to chemicals and touch. Q. bristles. They are aquatic, but can survive fairly extended sojourns on dry land as long as their gills remain moist. Equipped with thousands of sensory bristles, some sensitive to chemicals and the others to touch, crayfish can smell, feel, and hear acutely, even though they are completely covered in a hard shell. The external jaws or have calcified teeth. acrostichal bristles The two rows of hairs or bristles lying one on either side of the mid-line of the thorax of a true fly. Crayfish do not have ears, but they can hear. It is a relatively long-lived species, but has limited reproductive potential; it matures slowly (at age five years) and produces relatively few eggs. What appendage is used to pass sperm from the male to … He has currently achieved over 600,000 subscribers on YouTube and is growing constantly. SURVEY . About MrCrayfish. Crayfish are equipped with thousands of sensory bristles, some sensitive to chemicals and the others to touch, crayfish can smell, feel, and hear acutely, even though they are completely covered in a hard shell. They can smell, feel, and hear though they are completely covered with a hard shell. Bristleworms (or bristle worms) are segmented worms with bristly tufts extending from each of their segments. swimmerets. Tags: Question 17 . The Shasta crayfish is the only extant species of crayfish native solely to California. The things that animals need in order to survive. water. They can grow very large—up to 24 inches in a tank—but most are between one and six inches long. 30 seconds . all of the above. Underestimating crayfish would be a big mistake! 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