Across
- 1. Describes the condition in which appendages are divided into two segmented branches.
- 6. Division of an insect, crustacean or arachnid's body that lies between the head and the abdomen.
- 7. A class of myriapod arthropods having the body segments containing two pairs of legs.
- 9. Bloodsucking arachnids that are larger than the related mites.
- 12. Excretory glands in some crustaceans near the base of the large antennae.
- 13. Arthropod's pair of mouth parts used for biting, cutting and holding food are referred to as jaws.
- 14. Infection by a bacterium of the genus Borrelia. Serious complications if left untreated.Symptoms are flu like and may include a rash followed by fever, joint pain, and headaches.
- 17. Balance sensory receptor present in some aquatic invertebrates, consists of a sac-like structure containing a mineral mass and numerous innervated sensory hairs.
- 19. Each of the tiny light sensitive optical units that make up a compound eye.
- 21. A secreted or excreted chemical capable of acting outside the body of the individual that triggers a social response in members of the same species.
- 24. A predatory myriapod invertebrate composed of many segments bearing a single pair of legs.
- 26. Slender tubes that are a type of excretory and osmoregulatory system normally found in the posterior regions of arthropods.
- 27. A small, seed-shaped aquatic crustacean with two shells of the class Ostracoda.
Down
- 2. A class of chelicerate arthropods that are characterized by simple eyes have four pairs of walking legs, no wings, book lungs and tracheae.
- 3. Poisonous liquid secretions through glands of the millipede's body as a defense mechanism.
- 4. Spiders will spin webs for the wind to catch and take them to a new area. What is this behavior called?
- 5. The insect body is divided into how many major parts.
- 8. Order of crustaceans derived from the Greek roots same foot.
- 10. The jaw-like structure joined to the front of the cephalothorax that contains the fangs and venom glands of the Chelicerata.
- 11. Segmented hard-shelled extinct arthropods, that existed over 300 million years ago in the Earth's ancient seas.
- 15. A class distinguished by their aquatic mode of life and the possession of abdominal appendages which bear respiratory organs.
- 16. A class within the arthropods that have a chitinous exoskeleton, a three-part body, three pairs of jointed legs, compound eyes, and two antennae.
- 18. An insect's thorax has how many segmented legs?
- 20. Respiratory organs situated on the ventral surface of the abdomen, with slits opening to the outside, found in arachnids.
- 21. A second pair of appendages attached to the cephalothorax that has varied purposes such as pincers, sensory organs, and locomotion organs.
- 22. The process of shedding or moulting outer cuticle in insects and other arthropods.
- 23. Very tiny arachnids often infesting animals,plants, or stored foods related to the ticks.
- 25. All arachnids have how many legs.