Honors Biology

1. Honors Biology Module 12 Arthropods – Part 2 February 18, 2016

2. Class Challenge Valentine’s Day: Pay it forward • Give Valentine cards anonymously • Volunteer at a local charity • Visit the elderly • Hug or call a family member • Thank a teacher or student • Shovel snow for a neighbor • Leave treats in the yard for rabbits, squirrels and birds • Donate soda tabs or cans to a local organization • Make nutritional treats for dogs and cats of neighbors, friends or animal shelter • Volunteer to baby sit (for free) • Donate blood

3. Next week’s Class Challenge Recite a Poem

4. Name Quiz # 21 Identify the parts of the Shrimp:

5. Shrimp Internal Anatomy: • Stomach • Heart • Digestive gland • Rostrum (external) External Anatomy: • Abdominal Segments • Carapace/ Cepholothorax • Antennules • Antenna • Eye • Walking Legs/ Pereiopods • Swimmerts/ Pleopods • Uropods I Telson 13 Total Points

6. Class Arachnida All about Spiders

7. Arachnida have 5 common characteristics: • Fours pairs of walking legs • A cephalothoras instead of separate head and thorax • Usually have four pairs of simple eyes • No antennae • Respiration done through organs known as “book lungs.”

8. What separates Arachnids from insects …. Arachnids have 8 legs (4 pairs) Insects have six legs (three pairs)

9. The second characteristic listed tells you that arachnids have only two body segments. – cephalothorax and an abdomen. You can count the “bumps” on the spider to that there are four pairs of simple eyes.

10. Spiders do not have antennae.

11. What are Book Lungs? Spiders breath through book lungs. They do the same job that gills do in a crayfish or a crab. They don’t extract dissolved oxygen gas from water, they extract oxygen from air. (Fig. 12.7) Air enters the exoskeleton through a slit in the abdomen, which is called spiracle. There it enters an organ that has several thin layers, almost like pages in a book. There the oxygen is absorbed by the blood and carbon dixoide is released.

12. Some Spiders Spin Webs, others Do Not…. Figure 12.6 Tarantula stalk their prey, sneaking up and pouncing on unaware creatures. Web spinning Spiders weave their webs out of spider silk. This incredible substance is very flexible and strong. We all of walked through a spider web. Comparing the spider silk’s strength, it would be stronger than a steel pipe of the same size, yet it would be almost as flexible as a rope. A spider silk rope that is just a bit thicker than a garden hose, for example, can support the weight of two full Boeing 737 airplanes.

13. Page 378, Paragraph 1 I need a volunteer to read this….

14. Three types of Spider Webs Sheet Web

15. Tangle Web

16. Orb Web

19. Many of the Spider’s organs are similar to the crayfish However, the most different organs are the: 1. Silk gland 2. Spinnerets 3. Fangs 4. Poison glands 5. Book lungs 6. Spiracle FIGURE 12.7

20. Class Chilopoda and Diplopoda Chilopoda -- think Centipedes Figure 12.8 Diplopoda- think Millipede

21. What is the Difference

22. Class Insecta • Three pairs of walking (or jumping) legs • Usually have wings at some stage of their life • One pair of antennae • Three segments: head, thorax, and abdomen

23. Insect Wings Most have two pairs of wings, some have one pair, and a very few have none at all. • Membranous wings • Scaled wings • Leather-like wings • Horny wings

25. Anatomy of an Insect See Figure 12.9 Insects have no respiratory system however they have interconnecting tubes called tracheas. These tubes connect to a series of small holes in the exoskeleton called spiracles. The Oxygen goes directly into the tissues, where oxygen and carbon dioxide are directly exchanged within the cells.

26. Reproduction and Development in Insects

32. What is the difference between Complete and Incomplete Metamorphosis?

33. Phylum Arthropods - Class Insect -- Order Lepidoptera (Ants, bees, Wasps) Order Coleoptera (Beetles) Order Diptera (Flies, Gnats, Mosquitoes) Order Orthoptera (Grasshoppers and Crickets)

34. Set up lab book to Record: Arachnida have 5 common characteristics: 1. Fours pairs of walking legs 2. A cephalothoras instead of separate head and thorax 3. Usually have four pairs of simple eyes 4. No antennae 5. Respiration done through organs known as “book lungs.” Diagram and Notes: Class Chilopoda and Diplopoda Chilopoda -- think Centipedes Diplopoda- think Millipede Diagram and Notes: Class Insecta • Three pairs of walking (or jumping) legs • Usually have wings at some stage of their life • One pair of antennae • Three segments: head, thorax, and abdomen

35. Insects: Most have two pairs of wings, some have one pair, and a very few have none at all. • Membranous wings • Scaled wings • Leather-like wings • Horny wings Diagram and Notes: - Reproduction and Development in Insects • Life cycle of a mosquito • Complete Metamorphosis • Incomplete Metamorphosis

36. Experiment 12.2 Insect Classification OBJECT: To become familiar with classifying insects. (Note: See next week’s quiz.)

37. Homework • Finish OYO questions for Module 12 • Finish Study Guide Questions for Mod 12 • Take Module 12 Test • Read Module 13 (pages 393 - 421) • Quiz: Define Complete and incomplete Metamorphosis; Arthropods ID 20 pictures • Class Challenge: Recite a Poem