Liberty University Online AcademyBIOLOGY 110The Crayfish Dissection Lab Student HandoutStudent Name: _____________________________________ Date: _________________Directions: Use the information in the “The Crayfish Dissection” lesson to help you complete thishandout. Once you have completed this handout, save it to your device, and upload it to theappropriate assignment.Part 1: External Anatom
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The Crayfish Dissection Lab Student Handout
Student Name: _____________________________________ Date: _________________
Directions: Use the information in the “The Crayfish Dissection” lesson to help you complete this
handout. Once you have completed this handout, save it to your device, and upload it to the
appropriate assignment.
Part 1: External Anatomy
Use the videos and images in the lesson to help you match the external structures of the crayfish to their
function.
Table 1 (5pts each = 40pts)
Letter Structure Function
A B C D E F G H I J
1. What phylum does the crayfish belong to? (4pts)
2. Arthro- means _________________________. (2pts)
3. -poda means __________________________.(2pts)
4. What is an exoskeleton and what is it made of? (5pts)
5. How do you determine a male from a female crayfish? (5pts)
6. The female crayfish also has two pores located under the pairs of swimmerets. What is the
name and function of these pores? (5pts)
Part 2: Internal Anatomy
Use the videos and images in the lesson to help you match the internal structures of the crayfish to their
function.
Table 2 (4pts each = 32pts)
Letter Structure Function
A B C D E F G H
7. In the video dissection, the instructor shows the gills and comments on their size. What is the
significance of crayfish having large gills? (5pts)
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