1 / 6

Earthworm Dissection Lab

Earthworm Dissection Lab. Problem: What are the internal/external structures of an earthworm? What is the purpose of these structures?. External Structures. External Structures & Words to Know. Anterior - head end of body Posterior - tail end of body Dorsal - back side

menora
Download Presentation

Earthworm Dissection Lab

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Earthworm Dissection Lab Problem: What are the internal/external structures of an earthworm? What is the purpose of these structures?

  2. External Structures

  3. External Structures & Words to Know Anterior- head end of body Posterior- tail end of body Dorsal- back side Ventral- under side Setae- hair-like bristles that aid in movement Clitellum- swelling seen in sexually mature worms that forms eggs

  4. Internal Structures

  5. Pharynx- section after the mouth Esophagus- section after the pharynx that leads to the crop Aortic arches-5 “hearts” that transport blood through the body Crop- stores food Gizzard- grinds up food mixture Intestines- tube where food is digested & nutrients are absorbed. It leads to the anus Septa- threadlike structures that hold the skin to organs Internal Structures & Words to Know

More Related