Mollusk Identification and Lab Procedures

This video tutorial introduces lab number two, focusing on the use of dichotomous keys for identifying seagrasses and mollusks. It explains the concept of a dichotomous key, using examples of Florida seagrasses, and outlines the lab activities, including 'Fishing for a Name' and shell identification. The video also provides detailed instructions for the lab write-up, emphasizing the importance of sketching and labeling mollusk anatomy and using dichotomous keys for identification.

What is the primary purpose of a dichotomous key in a lab setting?

• To provide a detailed history of species

• To identify species based on observations

• To record environmental conditions

• To measure the growth rate of plants

Which type of seagrass is identified by its round, spaghetti-like strands?

• Turtle Grass

• Shoalgrass

• Manatee Grass

• Eelgrass

What characteristic is used to identify Turtle Grass?

• Round strands

• Thin, linear leaves

• Thick leaves greater than three millimeters in width

• Leaves with a whorled shape

What is the first activity in the lab called?

• Shell Sketching

• Fishing for a Name

• Mollusk Identification

• Seagrass Observation

Which phylum do the most common intertidal organisms belong to?

• Chordata

• Echinodermata

• Arthropoda

• Mollusca

What are the two types of shells you need to sketch in the lab?

• Chitin and Tusk Shell

• Gastropod and Cephalopod

• Coral and Sponge

• Bivalve and Univalve

What format can you use to submit your shell sketches?

• Only as PDF files

• As text descriptions

• As .jpg files or in a PowerPoint

• Only as physical drawings

What resources are provided for mollusk identification?

• Printed textbooks

• Interactive apps

• PDF files with dichotomous keys

• Video tutorials

What should be included in the lab write-up?

• Sketches and a conclusion

• Only a cover and references

• A cover, tables, sketches, and references

• Tables and a summary

What is the final step in the lab write-up process?

• Creating a digital poster

• Including references

• Conducting a peer review

• Submitting a video presentation