ARTHROPODA

The segments of arthropoda are joined into:
1. a head, a thorax, an abdomen
2. a cephalothorax and free segments
3. steady segments
On the body surface there is a solid:
1. epidermis
2. cuticula
3. a shell
Arthropoda have an internal skeleton.
1. Yes, they do. But only the insects.
2. No, they do not.
3. Yes, they do. But only in a larva stadium.
A testaceous animal bellongs to:
1. diplopoda
2. chilopoda
3. collembola
How many walking legs do insects have?
1. there pairs
2. four pairs
3. six pairs
A crayfish belongs to...
1. testaceous animals
2. tracheata
3. chelicerata
........have the ability of autotomy.
1. harvestmen
2. acari
3. pseudos corpiones
A castor bean tick belongs to...
1. chelicerata
2. tracheata
3. testaceous animals
Tracheata, who live in the soil and eat algae and fungi, are called:
1. collembola
2. diplopoda
3. chilopody
Arthropoda have...
1. an internal skeleton
2. an external skeleton
3. they do not have a skeleton