Chitinous teeth crayfish
WebRows of chitinous teeth line the stomach. Predict their function. 7. The feathery nature of the gills increases their surface area. Why is this important? 8. Many nerves leave from … WebChitinous definition: Made of, pertaining to, or resembling chitin . Sutures are stated to mark off some of these pieces, but in the proper sense of that term as applied to the …
Chitinous teeth crayfish
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WebApr 29, 2009 · Best Answer. Copy. After nerves leave the gaglion they go to the, Intestine. Wiki User. ∙ 2009-04-29 20:19:06. This answer is: Study guides. WebWhat does chitinous mean? Information and translations of chitinous in the most comprehensive dictionary definitions resource on the web. Login .
WebVirtual Crayfish Dissection Name m. Remember to write in COMPLETE sentences as you answer each question unless the question specifically tells you to LIST the parts of the answer. 1. What is the purpose of this lab? The purpose of this lab is to observe the external structures of a crayfish and dissect it to study its internal structures and systems. WebThe crayfish has four pairs of appendages called walking legs. The walking legs are used for mainly locomotion in the crayfish. Feathery gills, for respiration, are attached to the appendages of the thorax. As the walking legs move, they help to circulate water around and move the gills, which improves respiration. The movement of the gills ...
WebIs the crayfish most vulnerable to its enemies from the dorsal or ventral side? Why? 9. The crayfish usually molts, or sheds its exoskeleton, twice a year. Why does the crayfish "hide" after it molts? 10. Rows of chitinous teeth line the stomach of the crayfish. Predict their function.. 11. The feathery nature of the gills gives them a very ...
WebApr 7, 2010 · Exoskeletons are chitinous and not subject to ossification because they are not bone but a dense form of protien. Function of chitinous teeth of crayfish? Chitinous teeth aid in food digestion by helping to further break down food to smaller particles.
WebProcedure Part 1—External Anatomy of a Crayfish. 1. Put on safety goggles, gloves, and a lab apron. 2. Place a crayfish on its side in a dissection tray. Use the diagram below to locate the cephalothorax and … henry ch cowlesWebView Crayfish -Prelab.pdf from SCIENCE 11 at King George Secondary. PreLAB: Crayfish This portion of the lab MUST be completed prior to dissecting the clam. ... (chitinous teeth then grind up the food into the paste) before it is sent to the digestive tract. The digestive gland surrounds the stomach and secretes enzymes into the stomach that ... henry chee chun haow + blogspotWebLike all crustaceans, a crayfish has a fairly hard exoskeleton that covers its body. As shown in Figure 1, the body is divided into two main parts, the cephalothorax ... Chitinous teeth Stomach, pyloric portion Digestive gland Ganglion Opening of sperm duct Brain Stomach, cardiac portion Testis Artery henry chauncey yaleWebIt's a cannablistic scavenger feeds on dead or decaying insects, larvae, worms, snails, tadpoles, and smallfish. What is the outer exoskeleton consist of ( very tough material) Chitin. How can u determine externally whether a crayfish is male or femle. The males first pair of swimmerets are longer than the females. henry cheer up yewonWebDec 2, 2011 · In crayfish the cardiac stomach has chitinous teeth in it. These are used for grinding and crushing food. The pyloric stomach is used for food digestion. The … henry chavelWebDec 13, 2024 · The foregut of crayfish is a dual-chambered, chitinous sac that varies considerably. The area closest to the front, the cardiac chamber, is a sizable sac in the majority of a diversity of interior structures in … henry cheever prattWebDec 13, 2024 · Crayfish, also known as crawfish, are crustaceans that live in fresh and brackish waters around the world. An important part of their anatomy are their ctenidia, which are small, flat structures located on the sides of the thorax. ... The radula is made up of a row of chitinous teeth in a spiral formation. In this manner, the mollusk is more ... henrychein.com/medical