7-It is an invertebrate.
Has it got
jointed limbs?
Yes, it
has. It is an arthropod.
Arthropods have got jointed limbs and an exoskeleton.
Now, count
the legs and antennae.
-If
its got 8 legs and no antennae,
it is an arachnid.
Some of them have two body parts
(cephalothorax
and abdomen)
for example spiders
and scorpions,
but others have only one, like harvestmen (opiliones)
and mites.
-If
its got 6 legs and 2 antennae,
it is an insect. Most insects have got 4 wings
(excepting flies). They also have a life cycle which includes a
metamorphosis (complete
or incomplete). Their bodies are divided into 3 parts (head,
thorax and
abdomen).
-If it has
got many legs, 2 antennae and a segmented body it is a myriapod.
One pair of legs (2) per segment, centipede.
Most centipedes are predators
(they eat other animals). Two pairs (4) of
legs per segment, millipede
-It
has got 4 antennae (remember that they are not always visible for the
naked eye) and 10 or more feet, they are crustaceans. Most
crustaceans live in the water but those who do not need a moist
environment (they cannot dry)
No,
it hasn’t. Go to 8.
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