Insects Structure and Function Flashcards
4 parts of an insect body?
Exoskeleton
Head
Thorax
Abdomen
What is Tagmosis?
the evolutionary process of grouping segments into body regions
Charateristics of an exoskeleton
Rigid outer shell
muscle support
covers internal organs
what are sclerites?
hardened plates from the exoskeleton
The insect head is specialized for…
feeding and sensory perception
the head is attached to the thorax by what?
cervix
the head contains what three things
mouthparts, eyes, antennae
three types of eyes
eye spots
ocelli
compound eyes
Characteristics of eye spots
immature flies
light receptors
Characteristics of Ocelli
light/dark
Characteristics of Compound eyes
eyes on side
hexagonal facets
Ocellus contains…
lens
nerve cells
True or false?
The insect thorax is fusion of 3 segments
true
Three segments of the thorax are called
Prothorax
Mesothorax
Metathorax
Each segment has one pair of?
legs
Meso- and Meta- may contain…
one pair of wings each
one pair of spiracles each
what is the primary function of the thorax?
locomotion
true or false?
Both adults and larve have wings
False.
Only adults have wings
The insect abdomen may have up to ____ segments?
11
Male genitalia consists of
Claspers and Aedeagus
Three regions of the digestive system
Foregut
Midgut
Hindgut
digestive system is responsible for
absorption of nutrients and excretion of waste
Circulatory system is an ___ system, not circulated
open
Circulatory is a series of…
vessels and homocoel
