Class Insecta: General info (Exam 4) Flashcards
1
Q
Class insecta
A
- 1 million
- most abundant and widespread of all terrestrial organisms: REPRESENTS 90% OF LIFE FORMS ON THE PLANET.
2
Q
Entomology
A
study of insects
3
Q
Head
A
pair of antennae (highly variable); large compound eyes
4
Q
thorax
A
3 pairs of legs/2 pairs of wings on the thorax
5
Q
locomotion
A
walking, flight
6
Q
exoskeleton
A
composed of a complex system of plates: sclerites
7
Q
sclerites
A
scleroproteins instead of chitin= light weight for flight
8
Q
mouth parts
A
chewing, sucking, sponging or lapping, biting
9
Q
feeding
A
phytophagus, saprophagus
10
Q
phytophagus
A
feeds on plants
11
Q
saprophagus
A
feed on dead material, parasitic, predatory
12
Q
respiration
A
tracheal system: spiracles: pores open to external enviornment
