Free Kingdom Animalia MCQs with Answers
912 Kingdom Animalia MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Last updated
912 questions · page 92 of 92
911. The largest phylum of animals is:
- A. Annelida
- B. Arthropoda
- C. Chordata
- D. Coelenterata
Explanation: The largest phylum of animals is the phylum Arthropoda. It includes insects, spiders, crustaceans, and other joint-legged organisms. Arthropods are incredibly diverse and can be found in various habitats around the world.
Correct answer: Arthropoda912. _ is found in the exoskeleton of crabs
- A. cellulose
- B. chitin
- C. murein
- D. hemi-cellulose
Explanation: Option B is correct. Chitin is found in the exoskeleton of crabs. Chitin is a tough, fibrous material that is made up of long chains of sugar molecules. It is the main component of the exoskeletons of insects, spiders, crabs, and other invertebrates. Chitin is also found in the cell walls of fungi and some algae. The other options are not found in the exoskeleton of crabs: Cellulose is a tough, fibrous material that is made up of long chains of sugar molecules. It is the main component of the cell walls of plants. Murein is a polymer made up of two sugar molecules and a short peptide chain. It is the main component of the cell walls of bacteria. Hemicellulose is a polymer of sugar molecules that is found in the cell walls of plants.
Correct answer: chitin