The lubber grasshopper, found throughout the southern United States, is frequently used in biology classes to teach students about the respiratory system of insects. Unlike mammals, which have red blood cells that carry oxygen throughout the body, insects have breathing tubes that carry air through their exoskeleton directly to where it and the

---

Size: 3020px × 4530px
Location:
Photo credit: © NIH / IMAGE POINT FR / BSIP / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: animalarthropodaarthropodsinsectskatydidkatydidstettigoniidaetettigoniidsgrasshoppersmammaliamammalianmammalsexamination, apparatuscardio-vascular, apparatuscardiovascular, apparatusescardio-vascular, apparatusesvasculaturecardiovascular, apparatusrespiratory, blood, cardio-vascular, cellred, cellrespiratory, cells, cellsrbcrbcrbcsred, cellsrespiratory, corpuscleblood, corpusclered, corpusclesblood, corpusclesred, erythrocyteerythrocytesred, examination, imagerybiology, investigation, sciences, systembloodblood, systemexoskeletonanimalarthropodinsectorthopteratettigoniidgrasshoppermammalscientific, systemsblood, systemscardiovascularcardiovascular, techniqueexamination, techniquemedical, techniquenatural, techniquesimagingmedical, techniquesinvestigation, techniquesmedical, testinvestigation, tractexoskeletonsanimalsterrestrial