1. Crayfish Conclusion… Paragraph 1: What is an invertebrate What is an arthropod Thesis/topic of crayfish Paragraph 2: Symmetry Organs Digestion Movement Paragraph 3: How does “Form fit function” in the crayfish? Why is the arthropod considered advanced?

2. Warm up… To what phylum do crayfish belong? What are the names of the 3 segments in the arthropod body? What are the names of the 2 segments in the crayfish body?