Arthropod Flashcards
Arthropod characteristics(6)
Segmented
Invertebrate
Bilateral symmetry
Jointed appendages
Coelomate
Exoskeleton
Coelomate
Body cavity with complete lining
Chitin
Exoskeleton
Antennae
Detect:
movement
Sound
Chemicals
Pheromones
Communication chemicals
What senses do arthropods exhibit eyes?
May have two compound eyes and 3-8 simple eyes
Simple eye
One lens detects light
Compound eye
Many lenses detects movements and color
What is the arthropod body system?
Well developed nervous system
What circulatory system do arthropods have?
Open circulatory
How many hearts do arthropods have?
One or more hearts
Do arthropods have a complete digestive system?
Yes
Mouth, stomach, intestine, anus
Where are jointed appendages used for locomotion?
On the thorax
The earthworm has what kind of circulatory system?
A closed
Malpighian tubules
Remove waste
Where is the good muscular system attached to?
Inside of the exoskeleton
Arthropods mostly reproduce by??
Sexual reproduction
Internal fertilization
Land
External fertilization
Water
Parthenogenesis
Adults forms from an unfertilized egg(asexual reproduction)
Examples of social insects
Honeybees and ants
Unfertilized eggs
Haploid
In social insects, haploids developed into?
Male drones
In social insects, diploids develope into??
Workers and queens aka females
Fertilized eggs
Diploid
An increase of reproduction rates results from?
Parthenogenesis in arthropods
Exoskeletons in arthropods are?
Heavy and cannot grow
Molt
Shed their exoskeleton
Why do arthropods molt?
In order to grow
How often do arthropods molt?
4-7 times
Arthropods are very vulnerable when?
When they are molting
Tagmata
Body section
Arthropods have what three body sections?
Head
Thorax
Abdomen
Arthropods with two tagmata are…
Abdomen and cephalothorax
Cephalothorax
Fused head and throat
How many types of respiratory structures do arthropods have?
3 types
What are the three types of respiratory systems?
Gills
Tracheal tubes
Spiracles
Gills
Found in aquatic species
Tracheal tubes
Found in insects
Hallow air passageways
Spiracles
Openings that allows air to enter or leave