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Worm

BIOLOGY LABORATORY

Subject: 
Biology
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Biology
Zoology
animals
Aquatic ecology
Ichthyology
Fisheries
Chordate
Deuterostomia
Vertebrate
fish
Phylum
Worm

Invertebrates sponges, segmented worms, echinoderms, mollusks, and arthropods They do not have backbones or internal skeletons.? Some have external skeletons, called exoskeletons ??? Sponges -Very simple animals that have many pores (holes) through which water flows. -Water moves into a central cavity and out through a hole in the top. -obtain their food and eliminate wastes through this passage of water. -They have specialized cells for obtaining food and oxygen from the water. ??? Cnidarians -Hollowed-body animals with cells organized into tissues. -Have tentacles surrounding their mouth that contain stinging cells used to help capture its prey. -Have radial symmetry and two different body forms: polyp and medusa. -Examples are sea anemones, hydra, corals, and sea jellies. ???

Worm disection lab rebort

Subject: 
Biology
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Lumbricidae
Biology
Zoology
Lumbricus
Earthworm
Dissection
Clitellum
Worm
Scalpel
Lab report

Dissection of a Worm Purpose: We will do a dissection of a lumbricus terrestris. We will observe the structures of the earthworm, how the earthworm?s body is adapted to living in the soil, and how an earthworm demonstrates cephalization. Materials: One specimen of Lumbricus terrestris Rubber gloves Dissection kit Dissection tray Pins Procedure: Pin the worm to the dissection tray Using a scalpel, make a light incision at the dorsal side of the clitellum Using forceps and a probe, spread the incision open, little by little Pin down each piece of loose skin as you open the incision When you are done observing the specimen place it in a plastic bag for proper disposal by your instructor Clean up your work area and wash your hands before leaving the lab

Worm disection lab rebort

Subject: 
Biology
Rating: 
0
No votes yet
Tags: 
Lumbricidae
Biology
Zoology
Lumbricus
Earthworm
Dissection
Clitellum
Worm
Scalpel
Lab report

Dissection of a Worm Purpose: We will do a dissection of a lumbricus terrestris. We will observe the structures of the earthworm, how the earthworm?s body is adapted to living in the soil, and how an earthworm demonstrates cephalization. Materials: One specimen of Lumbricus terrestris Rubber gloves Dissection kit Dissection tray Pins Procedure: Pin the worm to the dissection tray Using a scalpel, make a light incision at the dorsal side of the clitellum Using forceps and a probe, spread the incision open, little by little Pin down each piece of loose skin as you open the incision When you are done observing the specimen place it in a plastic bag for proper disposal by your instructor Clean up your work area and wash your hands before leaving the lab
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