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Earthworm dissection worksheet pdf

 
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MessagePosté le: Ven 12 Jan - 18:46 (2018)    Sujet du message: Earthworm dissection worksheet pdf Répondre en citant

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The dissection of the earthworm is much improved when it follows the dissection of the roundworm Ascaris. Have students compare the structures of Ascaris and the Earthworm and explain how the additional features of the Earthworm make it more complex. Pre-lab Discussion: The earthworm belongs to a group of animals
Earthworm Dissection Lab Instructions. Pictures: Modern Biology, Holt. Objectives: • Describe the appearance of various organs found in the earthworm. • Name the organs that make up various systems of the earthworm. • Compare the organs of the earthworm with the organs in the human. Materials : Safety goggles
Earthworm Dissection Directions: Follow the instructions carefully, check the boxes as you complete each step. Remember that dissection is about carefully exposing the organs to view, try not to damage. 4 Earthworm Lab Analysis (Answer True of False; most of the answers can be found in this worksheet) 1. The brain
Learning How to Graph Correctly Lab : What days are the busiest in the Maternity Ward? Collect class data on Birthdays. Make a Bar Graph to represent what day of the week had the most births. Make a Line Graph to represent what numerical day of the month had the most births. Cells :Theory, Cycle, & Respiration.
Obtain your lab tools and set up the dissecting microscope if it is available. * Observe external features including anterior, posterior, dorsal and ventral. Find the prostomium, anus, clitellum, setae, female genital pore, male genital pores, segments. Label these features on the outline sketch of the earthworm on the last page
Pre-lab Discussion: The earthworm belongs to a group of animals called annelids (segmented worms). The body of an annelid is usually divided internally and externally into well-defined segments which may be separated from each other by membranous partitions. Except for the tail and head regions, all segments are
Earthworm Dissection. Objectives: • Describe the appearance of various organs found in the earthworm. • Name the organs that make up various systems of the earthworm. Materials: Safety goggles, dissecting pins, gloves, forceps, lab apron, scissors, paper towel, scalpel, water, dissecting probe, preserved earthworm,
EARTHWORM DISSECTION DIAGRAM. 1. Mouth – takes in food from soil. 2. Segments of Body – rings around body, body is segmented. 3. Pharynx – throat, passes food from mouth to esophagus. 4. Ventral Nerve Cord – like our spinal cord, carries nerve impulses. 5. Ventral Blood Vessel – major blood vessel
External Anatomy. 1. Straighten the earthworm out across the dissection tray, placing the ventral side down. a. The ventral side appears flatter than the other sides of the earthworm. b. The dorsal side is the worm's rounded top. 2. Identify the anterior and posterior ends of the earthworm. a. The anterior end features the
5 Jul 2014 An earthworm is a segmented animal. Its body plan consists of many rings (annellus means "ring" in Latin). Each segment, or ring, of an earthworm is numbered in . Place the earthworm in the dissecting pan with its dorsal surface up. . (Hint: Use the segment numbers as a guide for locating the organs.).

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