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Name Date Period Virtual Lab: Earthworm Dissection Go to : http://www.mhhe.com/biosci/genbio/virtual labs/BL 14/BL 14.html Directions: I. Read: Question: "What are the structures and body systems.

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This guide provides comprehensive instructions on how to accurately complete the Virtual Dissection Earthworm form online. By following these steps, users will effectively navigate the document and gain a deeper understanding of earthworm anatomy and dissection techniques.

Follow the steps to successfully complete the Virtual Dissection Earthworm online.

  1. Press the ‘Get Form’ button to obtain the Virtual Dissection Earthworm form and open it in your editor.
  2. Begin by reading the introductory question on the left side of the screen: 'What are the structures and body systems of an earthworm?' The first section requires responses to specific questions regarding the earthworm's classification, anatomy, and ecological roles.
  3. Proceed through the questions, providing detailed answers to each. Ensure you refer to the lab manual indicated on the form for additional information to support your responses.
  4. Continue by filling out the external anatomy section. Answer the questions regarding the worm's body structure, naming the front and back ends, and detailing the anatomy features as prompted.
  5. Move on to the internal anatomy section by reviewing the corresponding diagrams. Label the internal features of the earthworm and note the visible systems present.
  6. Next, address the digestive, nervous, excretory, and reproductive systems. Each page will guide you through specific questions, requiring thoughtful consideration of the functions and structures involved.
  7. After completing the thematic questions, utilize the drag-and-drop feature in the external and internal anatomy sections to match labels to the diagram correctly.
  8. Finally, review all your entries for accuracy, save any changes, and proceed to download or print the completed form as required.

Complete your Virtual Dissection Earthworm form online to gain valuable insights into earthworm anatomy today.

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Place the earthworm in the dissecting pan dorsal side up. 8. Locate the clitellum and insert the tip of the scalpel about 3 cm posterior to the clitellum. Carefully cut through the skin and muscles of the earthworm all the way up to the head.

Earthworms are ideal specimens to use for teaching basic anatomy and investigating simple organ systems. Although these annelids, or segmented worms, are one of the simpler preserved invertebrates, the digestive, circulatory, reproductive and nervous systems are well developed and easy to identify.

Incisions for Dissection Take great care to cut no more than 1/16 of an inch deep into the worm. With forceps, grasp the edges of the skin carefully. Pull the skin back so that it can be pinned down revealing the internal anatomy of the worm. Take care not to tear or pin any internal organs.

Materials: Safety goggles, dissecting pins, gloves, forceps, lab safety apron, scissors, paper towel, scalpel, water, dissecting probe, preserved earthworm, hand lens, dissection tray.

2:11 7:26 Biology Lab || Earthworm Dissection - YouTube YouTube Start of suggested clip End of suggested clip So we can open up the worm to see its internal organs. Before. We can cut the septa. We need toMoreSo we can open up the worm to see its internal organs. Before. We can cut the septa. We need to stick another pin into the worm as before.

The organs are a pair of ovaries, a pair of oviducts and four pairs of spermathecae. They are not connected with one another. Ovaries: Two minute white bodies attached to the posterior surface of the septum 12/13 segments, on either side of the nerve cord.

Earthworm Dissection: Internal Anatomy Lay the worm on your dissecting tray with its dorsal side facing up. Use dissection pins to secure each end on the tray. Start your dissection about an inch posterior to the clitellum. Lift up the skin with a pair of forceps and snip an opening with a pair of dissecting scissors.

6:23 21:38 Earthworm Dissection - YouTube YouTube Start of suggested clip End of suggested clip So I'm going to go ahead and put a pin. Straight in the anterior aspect of that earthworm. And I'mMoreSo I'm going to go ahead and put a pin. Straight in the anterior aspect of that earthworm. And I'm going to take another pin. And put it straight in the posterior aspect of the earthworm.

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© Copyright 1997-2026
airSlate Legal Forms, Inc.
3720 Flowood Dr, Flowood, Mississippi 39232
Form Packages
Adoption
Bankruptcy
Contractors
Divorce
Home Sales
Employment
Identity Theft
Incorporation
Landlord Tenant
Living Trust
Name Change
Personal Planning
Small Business
Wills & Estates
Packages A-Z
Form Categories
Affidavits
Bankruptcy
Bill of Sale
Corporate - LLC
Divorce
Employment
Identity Theft
Internet Technology
Landlord Tenant
Living Wills
Name Change
Power of Attorney
Real Estate
Small Estates
Wills
All Forms
Forms A-Z
Form Library
Customer Service
Your Privacy Choices
Terms of Service
Privacy Notice
Legal Hub
Content Takedown Policy
Bug Bounty Program
About Us
Help Portal
Legal Resources
Blog
Affiliates
Contact Us
Delete My Account
Site Map
Industries
Forms in Spanish
Localized Forms
State-specific Forms
Forms Kit
Legal Guides
Real Estate Handbook
All Guides
Prepared for You
Notarize
Incorporation services
Our Customers
For Consumers
For Small Business
For Attorneys
Our Sites
US Legal Forms
USLegal
FormsPass
pdfFiller
signNow
altaFlow
DocHub
Instapage
Social Media
Call us now toll free:
+1 833 426 79 33
As seen in:
  • USA Today logo picture
  • CBC News logo picture
  • LA Times logo picture
  • The Washington Post logo picture
  • AP logo picture
  • Forbes logo picture
© Copyright 1997-2026
airSlate Legal Forms, Inc.
3720 Flowood Dr, Flowood, Mississippi 39232