1. Spiders Ryan Bahadursingh Steven Charmello Andrew Schaeffer Reid Budrovich

2. Classification Kingdom: Animalia Phylum: Arthropoda Class: Arachnida Order: Araneae Family: Theridiidae Genus: Latrodectus Species: Hesperus

3. Body Plan Segmented Joined limbs Heads are composed of several segments that fuse during the development of the embryo Cephalothoraxand abdomen are connected by a small cylindrical section, the pedicel

4. Habitat Spiders live in many different environments They can be found in the desert, rainforest, and even your backyard

5. Predators Birds Toads Monkeys Lizards

6. Competitors Spiders are small and spend more time protecting themselves rather than fighting other animals Males compete against each other for females

7. Food Spiders mainly trap food in their webs and eat flies and small bugs Other, larger species may hunt small birds or lizards

8. Structures & Functions 8 Legs: Allow for easy mobility Move quickly and agile Navigate and hide on the webs they spin

9. Reproduction Spiders reproduce sexually Fertilization is internal but indirect

10. Circulatory System Spiders have an open circulatory system Their blood flows through veins and arteries and is released into open cavities around the organs

11. Respiration Spiders have developed different respiratory anatomies:book lung, a tracheal system, or both Two pairs of book lungs where openings on the ventral surface of the abdomen allow air to enter and diffuse oxygen Tracheal tubes are found less often but fuse together to form spiracles

12. Interesting Facts Webs Many shapes, sizes & colors 8 legs http://www.youtube.com/watch?v=pBkhQOYArxg&feature=related