insects

• why do insects require more oxygen for respiration


  because they fly
• what is the difference between insects gas exchange system and mammals gas exchange system


  insects do not use blood to transport gassesSee an expert-written answer!We have an expert-written solution to this problem!
• how do gasses get into the insects gas exchange system


  through little hole called spiricals
• why do spiricals open and close


  to allow the exchange of gasses and to reduce water loss
• what is the definition of a spirical


  holes like the stomata in plants used for gas exchange
• what happens during periods of inactivity in insects

  the movement of the abdomen ventilates the trachea
• what are the advantages of the tracheal system for gas exchange


  no respiratory pigment is needed , the oxygen moves faster ,the spiricals close to reduce water loss and oxygen is supplied directly to the tissues
• what are tracheoles


  The very small ends of the trachea where oxygen enters the cells.
• what structural feature ensures that the tracheae remain open


  chitin ring present in the airways
• why sre the gas exchange system retained inside the body of all terrestrial organisms


  reduce water loss , reduce heat loss and protection by the ribs or exoskeleton