MCQ Bank
The presence of Flame cells is the Characteristic Feature of:
- A) Phylum Platyhelminthes
- B) Phylum Cnidaria
- C) Phylum Mollusca
- D) Phylum Echinodermata
Explain the role of the mantle in mollusks
- A) It is a feeding organ.
- B) It is involved in locomotion.
- C) It houses the nervous system.
- D) It secretes the shell
Monogononta is a Class under Phylum ________________.
- A) Phylum Rotifera
- B) Phylum Porifera
- C) Phylum Platyhelminthes
- D) Phylum Cnidaria
How many known species of roundworms are reported worldwide?
- A) About 1,500
- B) About 10,000
- C) About 15,000
- D) About 5,000
The Order of “Pacific Sea Nettle” is: -.
- A) Semaeostomeae
- B) Scyphozoa
- C) Asteroidea
- D) Araneae
What does the term "Rotifera" mean?
- A) Wheel bearers
- B) Filter feeders
- C) Microscopic creatures
- D) Rapid swimmers
Explain the significance of crown of cilia in Rotifers?
- A) It protects the body from external threats.
- B) It functions as a sensory organ.
- C) It helps in grinding food particles.
- D) It is used for locomotion and generating water currents for feeding.
Apply the knowledge of mollusk classes to another example within Class Cephalopoda.
- A) Nautilus
- B) Clam
- C) Mussel
- D) Snail
Phylum Cnidaria are named due to:
- A) Radial symmetry
- B) Polymorphism
- C) Diploblastic Nature
- D) Presence of Stinging Cells
What is the role of the clitellum in annelids?
- A) Respiration
- B) Reproduction
- C) Digestion
- D) Locomotion
Explain the significance of metamerism in annelids
- A) Each body segment has a complete organ system.
- B) It facilitates locomotion.
- C) It is for protection.
- D) It aids in digestion.
What is the primary component of the exoskeleton in arthropods?
- A) Keratin
- B) Silicon dioxide
- C) Chitin
- D) Calcium carbonate
How do annelids respire?
- A) Through specialized respiratory organs
- B) Through their moist skin
- C) Through lungs
- D) Through gills
What does the term "Annelida" mean?
- A) Small worm
- B) Flatworm
- C) Thread-like worm
- D) Segmented worm
What does the term "Arthropoda" mean?
- A) Jointed exoskeleton
- B) Jointed appendages
- C) Jointed body
- D) Jointed legs
Compare the respiratory systems of aquatic and terrestrial arthropods.
- A) Aquatic arthropods use gills, while terrestrial arthropods use trachea.
- B) Both use gills.
- C) Both use trachea.
- D) Aquatic arthropods use book lungs, while terrestrial arthropods use gills.