Arthropods - Insecta Flashcards
How many pairs of legs and wings and body parts do Insecta have
3 pairs of legs
2 pairs of wings
3 - head, thorax and abdomen
What is the process of moulting called
Ecdysis
There are 5 methods of feeding - what are they with the examples
Locusts, Praying mantis, Moths, Mosquitoes and Bees
Herbivores
Carnivores
Nectar-feeders
Piercers
Lappers
Are insects hermaphrodites and do they show dimorphism
No - Dioecious
Yes - Female is larger
Define the term parthenogenic
Asexual reproduction in the female creating a clone
What is unique about eggs in termites
Sex is dependent on whether it is haploid or diploid
Outline the respiratory and circulatory system
Spiracles with a chitin-lined tracheal system surrounded by haemolymph - open
What tubules are used for excretion - what do they reabsorb and what is excreted
Malpighian
Water - nitrogenous waste and salt
What are the 3 components of the nervous system
Cerebral ganglion and a pair of ventral nerve cords
Define incomplete and complete metamorphosis
Incomplete - identical to adults throughout -wings after final moult
Complete - Larval stages look different and are adapted for eating
What is flight driven by
Change in shape of the abdomen
What are wings extensions of
Cuticles
What senses vibrations on the appendages of Insecta
Chaeta
Which part of the Insecta is chemosensitive
Antenna
Which part of the Insecta communicates via sound
Tympanic membranes
