Flashcards in Excretion And Osmoregulation Deck (9)
What are the three forms of excretion?
Ammonia (lots of water)
Urea (some water)
Uric acid (excreted dry)
What are the three basic conditions of the hindgut?
What structures carry oxygen to the tissues and CO2 away?
How does air enter into the insect?
What are taenidia?
Spirally arranged cuticular thickenings designed to keep trachea open
What is the most metabolically active tissue?
The house fly brain
What are the four patterns of spiracle placement?
Hemipneustic (short bodied, spiracle number reduced)
Metapneustic/oligopneustic: single spiracle at tip of abdomen
Apneustic: no spiracles
What are Ostia?
Vertical slits in the heart where blood is drawn in under negative pressure