Arthropods Flashcards
One characteristic of arthropods are the ____ which allow for
more flexibility
Jointed appendages
This arthropod senses detects movement, sound, and
chemicals
Antennae
Arthropod senses as communication chemicals
Pheromones
Arthropods may have 2 compound eyes and ___
simple eyes
– ___ eyes w/ one lens used to detect light
– _____ eyes w/ many lenses used to detect
movement and color
3 to 8
Simple
Compound
this organ system removes waste
Malpighian tubules
In social insects (honeybees & ants)
– unfertilized eggs (haploid) develop into the ____
– fertilized eggs (diploid) develop into the _____
male drones
female workers and queens.
Three types of respiratory structures:
_____ – found in aquatic species
_____ – found in insects
Hollow air passageways
Spiracles are openings that allows air to enter or leave
_____ – found in spiders
Air-filled chambers with leaflike plates
– Gills
– Tracheal tubes
– Book lungs
Name six classes of arthropods.
Arachnida, Crustacea, Chilopoda,
Diplopoda, Merostomata, and Insecta
Examples of this class are Spiders, scorpions, mites, & ticks
They are found throughout the world in
nearly every habitat, but they reach their greatest
size and diversity in warm arid and tropical
regions
has 6 pairs of jointed appendages
Arachnida
The body is divided into two parts:
The anterior part, the____
The posterior part of the body, the ____
cephalothorax
abdomen
In the cephalothorax of arachnida:
The first pair of limbs, called the _____, may form pincers or
poison fangs
the second pair, the _____, may serve as pincers, feelers,
legs, hold reproductive parts
chelicerae
pedipalps
The following are examples of ____
Crabs Crustacean
Lobsters
Shrimp
Crayfish
Barnacles
Water fleas (Daphnia)
Pillbugs
Crustaceans
Centipedes - class ____
Millipedes - class ____
Chilopoda
Diplopoda
_______are carnivorous and have a
painful bite using fangs
have an odd number (15-181) of
body segments
One pair of legs per segment
Generally flattened
Have a pair of well developed antennae on
the head
Centipedes
______
eat mostly plants
They don’t bite, but they can release a
foul smelling fluid
can have 100+ segments,
each with 4 legs and two spiracles
have more rounded bodies
Millipedes
_____ are animals called living fossills and they belong to class ____.
Horseshoe crabs; merostomata
The _____ has survived because it
can go a year without eating and endure
extreme temperatures and salinity
horseshoe crab
The largest class of arthropods!
usually mate only once or they
might mate only a few times during
their lifetime
They lay many eggs at once
Eggs are fertilized internally
is the most successful and
diverse class of organisms on earth
Class Insecta
Class Insecta
Have ___ body segments
Have ___ pairs of legs
Have __ pair of antenna
Many fly
3
3
1
Complete Metamorphosis – egg, ____,
pupa, and ____
larva; adult
Larva is wormlike and are called ____
The ____ is a major change in body
systems
caterpillars
pupa stage
butterflies, ants, wasps, beetles develops from egg to adult through a process called _____.
Metamorphosis
_______ Metamorphosis – is a
gradual change with three stages
Egg, ____, and adult
______ look like tiny adults
Examples are _______
Incomplete
nymph
Nymphs
cockroaches and grasshoppers
