Fig. 1.1 shows a woodlouse.
The woodlouse is a crustacean, one of the four groups of arthropod.
It is a herbivore that lives on land and eats decaying plant materials.
It breathes with gills that must be kept moist.
Name two other groups of arthropod.
For each group state one feature found only in animals of that group.
1 group
feature
2 group
feature
A – head, thorax, abdomen named
I – Refs to individual organisms but if in an
arthropod group allow correct feature for the
group
insects;
3 pairs of / six legs / 3 regions to body / wings;
arachnids;
4 pairs of / eight legs;
myriapods;
1 or two pairs of identical legs on each segment;
Any two pairs – 2 marks each