Download Arthropod Notes - Solon City Schools

Hey Jake, Eli, &
Shreyans You
Better Be Good or
I’ll squash you like
a bug!!!
Hey Jake2, Steven,
& Adam… You
Better Be Good or
I’ll squash you like
a bug!!!
Invertebrates are animals that have no backbone.
There are more than 1 million kinds of
arthropods on Earth.
An arthropod is an invertebrate with
an exoskeleton, a segmented body,
and jointed legs.
crayfish
• The body segmented, the segments usually
grouped in two or three rather distinct regions.
•
ex. 3 regions- Head, thorax, abdomen
•
(beetle)
•
ex. 2 regions- Cephalothorax (fused head &
•
thorax) and abdomen
• Exoskeleton ( called a carapace in crayfish) made
of chitin.
• Paired segmented appendages.
An exoskeleton is a hard, outer covering
made of chitin.
Molting is to leave an exoskeleton and
grow a new one.
A crustacean is an arthropod that has a hard,
exoskeleton, two pairs of antennae, and a
mouth for crunching and grinding.
Crustaceans can ________ certain parts
of their body.
A ___________ can re-grow its claws.
Most crustaceans live in ______ and get
oxygen from the water through _________.
Gills are
Digestion
• Tube from the mouth to the anus.
• Divided into sections: the foregut, the
midgut and the hindgut.
• Anterior ganglion or brain and paired nerve
cords.
• Some have developed sensory ability.
• Have an open circulatory system that
carries food, but not oxygen throughout its
body.
• Blood is often green since it does not carry
oxygen.
• The heart is a simple tube running along the
back.
Respiratory System
• Respiration by means of gills, or book lungs
and spiracles.
Reproduction
• The sexes nearly always separate.
• Fertilization is usually internal in land
species but external in aquatic species.
Excretion
• Passes waste out of its anus from the
hindgut.
• No nephridia but crayfish have a green
gland to get rid of liquid waste
* Centipedes and millipedes are arthropods
that have many legs.
* Have _______ pair of legs in each segment.
* Are carnivores and eat _________.
* To capture its prey, a centipede puts
_______ into the prey’s body with its_______.
* Centipedes are found in ___________ like
under rocks and in the soil.
* Centipedes and millipedes are arthropods
that have many legs.
* Have ___ pairs of legs on each segment.
* Eat _________ and are shy animals.
* When scared, it _________________ to protect
itself.
* Do not have ________.
* Are found in __________like under rocks and in
the soil.
* All have __________ legs.
* Have a body divided into two parts:
•______________________________
•________________________________
* Spiders usually eat __________, but some spiders
eat small _______________ like hummingbirds.
* Many spiders make webs out of _________.
* Silk is _________________________________.
* Spiders catch their prey in many different ways.
* Some spiders catch their prey in ____.
* Some spiders ________ from their prey
and then ________________________.
* When spiders catch their prey, it _______ it and
_________ it.
* Spiders breathe oxygen with __________.
* Scorpions usually live in __________ areas.
* Most scorpions are __________________.
** Nocturnal means ____________________
* During the day, scorpions hide __________
______________________________.
* When scorpions capture prey, they _______
___________________________________.
* Ticks and mites live on _______________.
* Some ticks and mites suck juices from
____________________.
* Other ticks and mites are very tiny and live
on __________.
* Many ticks suck the blood from _________.
* Ticks can give animals a ____________.
*There are more kinds of insects than there
are all other animal species all together.
* There could be _______________ times as
many insects as humans on Earth.
* Insects have a body that is divided into ____ parts.
* An insect’s body is divided into a ________,
a _____________, and a ___________ area.
* Insects have _____ legs connected to the chest part.
* Some insects’ legs are all the same size. Some
insects have one pair of legs larger than the other
two pairs.
•A grasshopper has one pair of legs larger than the
other two pairs. These larger legs are used for
____________.
•Get rid of waste by
•Malpighian tubules in
•grasshopper
Longer back legs
Malpighian tubules
Grasshopper
Grasshopper (external and
internal)
Grasshopper –Respiration with
Spiracles and Trachea
* Insects eat a lot, so they grow very fast. As they
grow, insects may molt and grow new ___________,
or they may change completely.
* A huge change in appearance is called ________.
* There are two kinds of metamorphosis:
______________ and ______________.
* Most insects live alone. But, some insects
are ___________ and cannot survive alone.
* These insects live in ______________ or hives.
* A colony is _____________________________
_______________________________________
* An amazing example of a colony is a __________.
* A beehive is ___________________________.
* All insects must protect themselves.
* Bees and wasps have _______________ to
protect themselves.
* Many other insects use ______________.
* Camouflage allows an insect to hide by ___
_______________________________.