While walking in the woods, you see an organism whose body is divided into two segments and has eight legs and fangs. The organism does not have wings or antennae. In which subphylum would you place this organism?

A. Uniramia

B. Crustacea

C. Chelicerata

Question

While walking in the woods, you see an organism whose body is divided into two segments and has eight legs and fangs. The organism does not have wings or antennae. In which subphylum would you place this organism?

A. Uniramia

B. Crustacea

C. Chelicerata

thomaster · Answer

Uniramia have antennae so we cancel that one.
Crustacean also do have antennae, they also don't have fangs and they have more than 8 legs.
Chelicerata don't have antennae and they have 8 legs and also fangs. So the answer must be C. Examples of chelicerata are spiders (arachnida)