digestion

-complete digestive system

-food processing occurs in a tube like structure

-mouth to anus

crop: stores food

gizzard: grind and digest

malpighian tubes: discharge into the hind gut

intestine: absorb nutrients and process food

rectum: take waste products out

anus: disposes waste products

stomach: breaks down food

gastric caeca: secrete enzymes

salivary gland: use saliva to break down food

esophagus: food passing portal

getting food

chewing

-mouth parts are modified to chew up vegetation

-herbivores

-symbiotic relationship with protozoa and bacteria

piercing

-mouth parts modified to pierce and suck liquid

-carnivores

-large crop to store blood releasing it slowly in mid gut

NUTRITION

Herbivores: plant eaters

-butterflies

-katydids

-moths

-grasshoppers

-caterpillars

Carnivores: meat eaters

-dragonfly

-praying mantus

-Arachnocampa luminosa

ADDITIONAL FOOD GETTING

-poison gland: protector, releases toxic substances (bees and wasps)

-maxilliped: appendages modified to function as mouth parts (dragonflies)

-mandible: appendages near the insects mouth, grasp, crush, cut food (ants and beetles)