Ward's World Activity Guides

Ward's+Impacts of Energy Drinks on Daphnia Activity

View, download, and print free resources for your science classroom.

Issue link: https://wardsworld.wardsci.com/i/1172332

Contents of this Issue

Navigation

Page 2 of 2

+ ward ' s science 5100 West Henrietta Road • PO Box 92912 • Rochester, New York 14692-9012 • p: 800 962-2660 • wardsci.com Daphnia Form and Structure * See illustrations of "summer eggs" (developing parthenogenically) and "winter eggs" (develop after being fertilized) on page 3. Winter eggs have thick shell and are produced in smaller numbers; brood chamber is molted to form a protective ephippium. 1. Frontal organ 2. Esophagus 3. Antennal adductor muscles 4. Antenna 5. Antennal levator muscle 6. Heart 7. Ovary 8. Blood chamber 9. Thin shelled "summer eggs" 10. Abdominal process 11. Apical spine 12. Post abdomen 13. Post abdominal claw (paired) 14. Anus 15. Rectum 16. Carapace 17. Filter setae 18. 2nd & 3rd thoracic appendages 19. Shell gland 20. Maxillae (vestigial) 21. Mandible 22. Mouth 23. Labrum 24. Antennule 25. Rostrum 26. Hepatic cecae 27. Ocellus or nauplius eye 28. Optic ganglion 29. Compound eye with optic nerve 30. Nuchal or neck organ Diagrammatic Anatomy of a Female Daphnia 1 2 3 4 5 6 7 8 9 10 11 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 *

Articles in this issue

Links on this page

Archives of this issue

view archives of Ward's World Activity Guides - Ward's+Impacts of Energy Drinks on Daphnia Activity