ARTHROPODS/leggless

Question 1

Arachnids mean

Answer 1

8 legs, a cephalothorax and abdomen, no antennae, 1 set of pedipalps. Arachnids are known for spinning webs like spiders, although there are some arachnids that do not spin webs such as ticks and scorpions

Question 2

Crustaceans mean

Answer 2

The different species differ from each other with regards to their number of legs. They have 2 sets of antennae and the fronts legs are modified to pincers. An example of Crustaceans is the crab

Question 3

Insects mean

Answer 3

6 legs, 3 main body parts, 1 set of antennae and most likely wings. An example is the grasshopper

Question 4

Diplopods mean

Answer 4

Many pairs of legs and a segmented body e.g. Milipedes

Question 5

Protozoa mean

Answer 5

Organisms that consist of one cell only.

Question 6

Coelenterate mean

Answer 6

Soft bodies with cells that burn it touched. They have no head and only 1 body opening where feeding as well as excreation takes place e.g. jellyfish

Question 7

Flatworm mean

Answer 7

Simple and soft bodies of which certain species are segmented e.g. tapeworms

Question 8

Annelids mean

Answer 8

Segmented, cylindrical soft bodies e.g. earthworms

Question 9

Molluscs mean

Answer 9

Soft bodies, sometimes have arms, mostly with shells e.g. snails

Question 10

Echinoderms mean

Answer 10

Sea animals with spines on their body covering e.g. starfish