4. ARACHNIDS
The female black widow is one of
the most poisonous creatures with
venom more potent than coral
snakes, cobras or rattlesnakes.
However her bite is rarely fatal in
humans. Why not?
Black Widow
5. ARACHNIDS
Eight pairs of appendages
Lack antennae
Lack mandibles
Divided into prosoma (cephalothorax) and opisthosoma
(abdomen)
Gas exchange through book gills
9. CRUSTACEANS
The head has two compound eyes, two pairs of antennae, and
three pairs of mouthparts.
A pair of green glands excrete wastes near the base of antennae.
The abdominal segments have swimmerets (swimming legs)
10. The sexes are separate. Eggs are attached to the swimmerets
(swimming legs) of the female. The first pair is enlarged in the
male (it is used to pass sperm to the female).
The tail is fan-shaped, and ends in uropods and a telson.
Open circulatory system
Ventral nervous system
12. CENTIPEDES
1 pair of legs per body segment
1 pair of poison claws/fangs underneath the head
Antennae present
Simple eyes
Carnivorous
13. DIPLOPODS
2 pairs of legs per body segment, although some juveniles may
posses only 1 pair per segment
Simple eyes if present, although many have no eyes
1 pair of antennae
Chewing mouthparts
Herbivores and Scavengers
15. INSECTS
A body divided into three parts (head, thorax and abdomen)
Three pairs of legs
Usually one pair of antennae and a pair of compound eyes (a
few exceptions to these characteristics are found)
Usually two pairs of wings (absent in many insects such as lice,
fleas, ants; flies have one pair of wings)
16. INSECTS
A body divided into three parts (head, thorax and abdomen)
Three pairs of legs
Usually one pair of antennae and a pair of compound eyes (a
few exceptions to these characteristics are found)
Usually two pairs of wings (absent in many insects such as lice,
fleas, ants; flies have one pair of wings)