Anatomical adaptations - well-developed, hard exoskeleton which
protects body from damage, dessication, etc.; composed of:
Exoskeleton does not grow with the body, therefore, must be shed periodically
by molting to alow for growth; does limit the size of most insects.
- hard, plates of exoskeleton connected by flexible hinge joints and
muscles, allowing for movement.
- light-weight, yet strong; makes flight possible.
Internally, digestive tract arranged in specialized, functional units
- anterior portion of digestive tract containing the mouth of labrum
(anterior lip) and labium (posterior lip), esophagus, crop,
- stomach for gastric digestion and gastric ceca for some adsorption
nutrients and of readsorption of water from the solid wastes.
- posterior portion of digestive tract containing the intestine, colon,
rectum and anus; water and ion reabsorption also occur here as well
as solid and soluble waste excretion.