Q: Among the following organisms, which one does not belong to the class of other three?
a) Crab
b) Mite
c) Scorpion
d) Spider
The correct answer is Option 1.
Mite, Scorpion, and Spider are Arachnids, while Crab is a Crustacean. Hence, Option 1 is correct.
Crustacean-
- Phylum: Arthropoda
- Kingdom: Animalia
- Scientific name: Crustacea
- Crustacean is generally aquatic and differ from other arthropods in having two pairs of appendages (antennules and antennae) in front of the mouth and paired appendages near the mouth that function as jaws.
- Crabs, lobsters, shrimps, and woodlice are among the best-known crustaceans.
Arachnids any member of the arthropod group that includes spiders, daddy longlegs, scorpions, and the mites and ticks.
- Phylum: Arthropoda
- Kingdom: Animalia
- Scientific name: Arachnida
- All Arachnids have eight legs, and unlike insects, they don’t have antennae.
- The bodies of Arachnids are divided into two sections, the cephalothorax in front and the abdomen behind.
In case you still have your doubts, contact us on 9811333901.
For UPSC Prelims Resources, Click here
For Daily Updates and Study Material:
Join our Telegram Channel – Edukemy for IAS
- 1. Learn through Videos – here
- 2. Be Exam Ready by Practicing Daily MCQs – here
- 3. Daily Newsletter – Get all your Current Affairs Covered – here
- 4. Mains Answer Writing Practice – here
