grasshopper arthropod: “jointed leg”. classification common name: grasshopper scientific name:...
TRANSCRIPT
Grasshopper
Arthropod: “Jointed Leg”
Classification
• Common Name: Grasshopper
• Scientific Name: Romalea
• Phylum: Arthropoda
• Class: Insecta
• Other Classification: Subphylum Uniramia
Major Distinguishing Characteristics
• 1. Body Plan: Head, Thorax, Abdomen• 2. Body Cavity: Coelom - true open space• 3. Symmetry: Bilateral• 4. Cell Specialization: Organ Systems• 5. Other: exhibit Incomplete
Metemorphosis - Nymph: physically resembles adult but lacks reproductive structures
Life Support Processes
• Absorption: intestine
• Feeding: specialized mouth parts to cut & chew plants/grass - herbivores
• Digestion: digestive tract
Life Support Processes
• Respiration: Tracheal Tubes lead to Spiracles; tubular network for gas exchange; body movement causes air to flow in & out
• Circulation: Heart - Open circulation
• Excretion: Malpighian Tubules- excrete nitrogenous wastes; Spiracles excrete CO2
Life Support Processes
• Secretion: Digestive enzymes secreted by the Gastric Caeca
• Response: Tympanum membrane located behind the leg - ear drum; Compound Eye, well developed ganglia in head - sense of taste, chemical receptors
• Movement: Walking legs, jumping legs, wings
Life Support Processes• Reproduction: separate sexes; male uses
his ovipositors to deposit sperm in the female - internal fertilization. Female uses her ovipositor to dig hole in ground for eggs
• Support: Exoskeleton
Ecological Relationships
• Herbivores - low on food chain
• Swarms - agricultural pests
• Live on Land
Body Systems Compared with Humans
• Tracheal tubes are comparable to Bronchi & Bronchiole tubes of human lungs
• Malpighian Tubules - kidney
Advancements Over the Previous Phylum
• 1. Specialized appendages
• 2. Extremely well developed sense organs
• 3. Ability to fly
• 4. Efficient respiratory network
• Some grasshoppers rub their wings together to create music, others snap their wings together while flying, and others just rub their hind legs across their front wings.
• Grasshoppers consume green forage at a rate of roughly eight times their weight.
• A grasshopper can leap over obstacles 500 times its own height. In relation to its size, it has the greatest jumping ability of all animals.