Phylum Arthropoda Test 2023 with complete solution

1. What are the 3 body parts an organism must have to be in Phlum Arthro- poda?: A head, a thorax, and an abodomen 2. All organisms in Phylum Arthropoda have kinds of parts.: different 3. Phylum Arthropoda organism have bodies and groupings.: segmented; distinct 4. These organisms have appendages.: jointed 5. What kind of skeletons do these organisms have?: exoskeletons 6. What is an exoskeleton?: a hard skeleton on the outisde of the body 7. What makes the skeleton's so hard?: chitin 8. What is in chitin?: protein and lipids 9. Why are exoskeletons waterproof?: Because of the lipids in it 10. What is molting?: a shedding of the exoskeleton 11. When can predators get its prey easily?: When the prey is molting because the shell is soft 12. All of these organisms have a circulatory system.: open 13. What is an open circulatory system?: where the bllod is not always in vessles and bathes the organs in blood 14. What are the crustaceans?: crawfish, crabs, lobsters, and shrimp 15. Crustaceans are mostly aquatic which means .: - They live in water most of the time 16. Crustaceans have of appedanges for protection and feeding- : specialization 17. What does Decapods mean?: ten legs 18. How many body regionds do Decapods have?: two 19. Where do most Terrestrial Arthropods live?: on land 20. What does the exoskeleton of terrestrial arthropods provide?: support and prevention of water loss 21. What are the 3 main groups of Terrestrial Arthropods?: Arachnids, insects, myriapods 22. What are the arachnids?: scorpions, spiders, ticks, and mites 23. Arachnids have body sections and pairs of legs: 2; 4