Parasitology Exam-arthropod Found.

Question 1

General characteristics

Answer 1

• jointed limbs
• coelom, bilateral symmetry
• chitinous exoskeleton
• dioecious
• development of systems

Question 2

Cuticle structure

Answer 2

Composition:
-proteins and Ca+ salts
-chitin
Functions:
-protection
-muscle insertion
-gives rigidity
Properties:
-insoluble
-indigestible 
Sensorial structures

Question 3

Moult

Answer 3

Metamorphosis
-complete/holometabolous: egg-larva-pupa-imago/adult
-incomplete/hemimetabolous: ehh-nymph-imago/adult
Controlled by hormones

Question 4

External morphology

Answer 4

Tagmatization/segmentation
-head= antennae, mouthparts/chelicerae
-thorax w. Legs and alae= pro-, meso-, metathorax
-abdomen= organs and reproductory appendices
Presence of patella

Question 5

Respiratory system types

Answer 5

• gills
• tracheal
• tegument