home


 * Alicia Jackman's Scientist’s Notebook (Hour 5)**

[|USD 500]

December 13th
 * Lab notebook**

-Grasshopper dissection

1. What is the largest phylum in the animal kingdon? -Arthropods are the largest phylum. 2. What does "arthropod" mean? -Arthropod means segmented. 3. List three characteristics that all arthropods have -Three characteristics are jointed appendages, exoskeleton and segmented bodies. 4. What three body regions do all insects have? -Three body regions do all insects have a head, thorax, and abdominal. 5. Name four other characteristics that all insects have. -Four characteristics that all insects have are legs, wings, antennae and eyes. 6.How many eyes does a grasshopper have? -A grasshopper has five eyes. 7. What are antenna used for? - They are sensory organs located on the head. 8. How may different mouth parts does a grasshopper have? - A grasshopper has twelve mouths. 9. Describe the function of the following mouth parts: -The labrum is used to hold food. -The mandibles are teeth used to chew food. -The maxilla are used to chew and taste food. -The labium is used to hold food while its being chewed 10. What is the Tympanum? - The tympanum is used for hearing 11. Where is it located? -The tympanum is located below the second pair of wings on each side of the thorax. 12.How many legs does a grasshopper have? -A grasshopper has six 13. Describe the function of the legs: -Front legs are used for walking, climbing and holding food -The middle legs are walking and climbing -The back legs are used for jumping 14. What are the spiracles used for and where are they located? -Spiracles are tiny holes in their abdomen. 15. What is the function on the ovipositor? -The ovipsitor is used to lay eggs. 16. Was your grasshopper a male or female? -We had a female and male grasshopper. 17. Describe the function of the following organs: -The esophagus is used to swallow food. -The rectum stores waste. -The anus removes waste. -The malpighan tubules collects waste from the waste. -The ovaries produce eggs. -The testes produce sperm 18. Name the six digestive organs in a grasshopper: -The six digestive organs are the crop, gizzard, gastric ceca, stomach, large and small intestine. 19. Why is a grasshopper classified as an invertebrate? -They have a hard shell that makes up its spinal area. 20. How is a grasshoppers skeleton different from yours? -They have theirs on the outside of their body. Ours are in the inside. 21. List the animals we have dissected so far from least complex to most complex: -Complex to most complex is the Crawdad, Grasshopper, Clam