Clam dissection prelab questions flashcards quizlet. Mollusks also have a radula or filelike organ for feeding, a mantle that may continue reading clam dissection. Choose from a wide selection of dissection manuals to easily learn how to. Detailed clam bivalve, molluscs or mollusks dissection jr.
View clam dissection questions from english 101 at cardinal newman high school, west palm beach. View lab report lab clam dissectionformal lab report from mrkt 3001 at walden university. As mollusks develop from a fertilized egg to an adult, most pass through a larval stage called the trocophore. Kingdom animalia phylum mollusca class bivalva pelecypoda. From an evolutionary line that began over 600 million years ago there are over 100,000 different species of mollusks today. Dissecting pan, dissecting kit, screwdriver, lab apron, plastic gloves, safety glasses, preserved clam procedure 1. Frog dissection lab report flipped out science with mrs. Jan 26, 2012 external and internal anatomy of a freshwater mussel. This zoo lab web page features information regarding mollusc form and function.
The genus romalea is a large grasshopper common in the southeastern united states. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The most noticeable feature on the inside is the foot. The tank contains living specimens of the hardshell clam mercenaria mercenaria. The valves are joined at the top, and the adductor muscles on each side hold the shell closed. Teach the earth paleontology teaching activities clam dissection.
When you have finished dissecting the clam, dispose of the clam as your teacher advises and clean, dry, and return all dissecting equipment to the lab cart. External and internal anatomy of a freshwater mussel. This indicates the dorsal or upper surface of the clam. If the adductor muscles are relaxed, the shell is pulled open by ligaments located on each side of the umbo. Continue the arrows showing wastes leaving through the anus. Clam dissection roy plotnick, university of illinois at chicago author profile. Invertebrates i page 3 of 15 in all sponge types, the body is designed to facilitate feeding. This clam dissection packet includes diagrams, instructions, and questions to guide students in their dissection. The example you will be studying is anodonta, a common freshwater bivalve. Clam dissection pre lab use your textbook and the websites provided in resources to answer the following questions in your lab notebook. See below for specific dissection specimen options. Water is pulled into the pores and canals by the beating of the flagella of choanocytes. Bird pigeon dissection powerpoint bonyfish evolutionary biology perch dissection perch dissection photos cat anatomy corner continued.
A lesson plan with time codes, quiz and an interactive powerpoint are available below. Insects are arthropods with jointed appendages, segmented bodies, and an exoskeleton composed of chitin. Put on your lab apron, safety glasses, and plastic gloves. Teacher prepares clams ahead of time by placing in boiling water until the adductor muscles relax. There are teachers from around the world teaching classes on pretty much every subject you can imagine, including dissection. Mollusks live in many diverse parts of the earth and though they share similar characteristics they have taken on many diverse forms. When you have finished dissecting the clam, dispose of the clam as your teacher advises and clean, dry, and return all dissecting equipment to the lab.
Molluscs shape of life kingdom animalia ii lower invertebrates continued describe the general morphology, major classes and advanced characteristics of roundworms phylum nematoda and rotifers phylum rotifera. Refer to figure 1 to locate the umbo and the anterior and posterior ends of the clam. They get their name from the woodlike valves or shells that make up their exoskeleton. You need to figure out which side of the clam is the anterior side and which is the posterior. Lab clam dissectionformal lab report name marine science. This tennessee tech web page contains stepbystep thumbnail photos of a clam dissection. Honors organismal biology laboratory 173 appendix c dissection guide. Label the internal structures of the clam and draw red arrows showing the pathway of food as it travels to the clam s stomach. This dissection guide was revised october 2014 with improved instructions and color images for a better dissection and easier identification of internal and external anatomy. Some of the worksheets for this concept are wood vol2 marinsci pp235 280, fish dissection lesson plan, perch dissection pictures to go along with lab, bony fish anatomy work, lab 5 phylum mollusca, perch dissection lab guide, skills practice lab perch dissection, frog dissection lab report. This online slide presentation features an image rich overview of clam dissections. The shells provide protection for the clam and are opened and closed by two adductor muscles located on either side of the hinge. Clam dissection revised by anne maben, marine biology instructor, long beach polytechnic high, from a ucsc invertebrate zoology lab introduction. Also, use arrows on the clam diagram to trace the pathway of food as it travels to the clam s stomach.
Fullcolor photographs of external structure, internal structure, and cross section of a clam. Gently lift and remove the pair of gills that are present on the exposed side of your clam. Dissecting pan, dissecting kit, screwdriver, lab apron, plastic gloves, safety glasses. They identify major body parts of the clam, and compare them to human anatomy. The oldest part of the clam shell is the umbo, and it is from the hinge area that the clam extends as it grows. The following outline can be used as a guide to doing the dissection or as a substitute for the dissection in the event that clams are not available. Open sesame use scissors to cut connection of posterior and anterior adductor muscles pull open with fingers. Open sesame use scissors to cut connection of posterior. Provenance created by the author of the page containing this file. Learn the inner workings of the filter feeding bivalve. Clicking on a thumbnail reveals the fullsize photograph with labeled structures. The state of illinois has declared a mandatory shutdown currently in place until 47.
The class of mollusks includes clams, oysters, mussels, and scallops. What is the oldest part of a clam s shell called and how. Learn about clams, dissection, and anatomy in this fun afternoon project. The two halves, or valves, of a clam shell are held together by two powerful. Navs now offers free downloads of the virtual reality dissection program froguts. Near the dorsal midline, just ventral to the hinge, is the thinwalled pericardial sac, which contains the heart. It is designed to be completed in a 50 minute class period, with time recommendations for each step of the dissection. This indicates the posterior or tail end of the clam. The clam become familiar with the external organization and the digestive and respiratory systems of the mollusk. Science lab tools for science scientific method powered by systems for. In the dissection you performed, this valve was removed for you. Examine the exterior surfaces of the clam s valves.
Insert a scalpel the valves in the region of the anterior adductor muscle. Clam dissection introduction the phylum mollusca includes snails, clams, chitons, slugs, limpets, octopi, and squid. Jul 04, 2017 clam dissection and basic structure and function. Apr 29, 2017 clam dissection introduction the phylum mollusca includes snails. This 12page pdf laboratory exercise explores the anatomy of molluscs. This cornell university website features a virtual clam dissection. This guide outlines and shows how to do a clam dissection.
Dec 04, 2018 clam dissection is a fantastic first step into the world of anatomy and dissection, particularly for young learners. Detailed clam bivalve, molluscs or mollusks dissection. Introduction mollusks are some of the most common marine invertebrates. By studying the anatomy of the frog, you will better understand the human body systems. Members of this class have a 2part shell and so are called bivalves. Clams are bivalves, meaning that they have shells consisting of two halves, or valves. Not overcook snip the adductor muscle so the clam lies.
Clams are easy to find either in the sand or in the supermarket and the project can be looped in with dinner. The two halves, or valves, of a clam shell are held together by two powerful adductor muscles. Locate and label the upper jaw or maxilla and the lower jaw or mandible. As an essential business serving the needs of the education and healthcare communities, we will be continuing to process and ship orders as well as provide ongoing customer service support.
Squid dissection introduction the phylum mollusca includes snails, clams, chitons, slugs, limpets, octopi, and squid. This indicates the anterior or head end of the clam. Although many differences exist between humans and frogs, the basic body plans are similar. Clam dissection click on one of the video options below to view the clam dissection. Alternatives to dissection websites humane society. Note that the curve in the umbo points toward the clams anterior end. Keep the shell that has the soft tissues of the clam. Bivalves are easily distinguished from other molluscs by the presence of. Students look at the inside of a real clam or mussel. To observe the structure of the clam and relate it to the animals niche. Choose your local station to find local resources, state standards alignment, local events, and more. Use arrows on the clam diagram to trace the pathway of food as it travels to the clam s stomach. The clam is an invertebrate in the phylum mollusca.
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