**Animal Kingdom: 100 MCQ Questions and Answers**
**1. Which of the following is not a characteristic of animals?**
a) Autotrophic nutrition
b) Multicellularity
c) Heterotrophic nutrition
d) Sexual reproduction
**Answer: a) Autotrophic nutrition**
**2. Animals that possess a notochord are classified into which phylum?**
a) Mollusca
b) Annelida
c) Chordata
d) Arthropoda
**Answer: c) Chordata**
**3. Insects belong to the phylum:**
a) Porifera
b) Cnidaria
c) Arthropoda
d) Platyhelminthes
**Answer: c) Arthropoda**
**4. The process of shedding the old exoskeleton in arthropods is called:**
a) Ecdysis
b) Excretion
c) Evolution
d) Embryogenesis
**Answer: a) Ecdysis**
**5. Which of the following is a vertebrate?**
a) Octopus
b) Earthworm
c) Starfish
d) Frog
**Answer: d) Frog**
**6. Which of the following is a characteristic feature of mammals?**
a) Gills for respiration
b) Cold-blooded
c) Mammary glands
d) Three-chambered heart
**Answer: c) Mammary glands**
**7. The respiratory surface in insects is called:**
a) Gills
b) Lungs
, c) Tracheae
d) Spiracles
**Answer: c) Tracheae**
**8. Which phylum includes animals with radial symmetry and a water vascular system?**
a) Mollusca
b) Porifera
c) Cnidaria
d) Echinodermata
**Answer: d) Echinodermata**
**9. The largest animal on Earth is the:**
a) African Elephant
b) Blue Whale
c) Giraffe
d) Polar Bear
**Answer: b) Blue Whale**
**10. Flatworms belong to the phylum:**
a) Platyhelminthes
b) Annelida
c) Nematoda
d) Mollusca
**Answer: a) Platyhelminthes**
**11. Which structure is responsible for filtering waste from the blood in vertebrates?**
a) Nephron
b) Alveoli
c) Neuron
d) Ovule
**Answer: a) Nephron**
**12. Birds belong to which class of vertebrates?**
a) Amphibia
b) Aves
c) Mammalia
d) Reptilia
**Answer: b) Aves**
**13. Which of the following is not a function of the skeletal system?**
a) Support
b) Protection
c) Hormone production
d) Movement
**Answer: c) Hormone production**
**14. In which phylum do organisms have stinging cells called nematocysts?**
a) Porifera
**1. Which of the following is not a characteristic of animals?**
a) Autotrophic nutrition
b) Multicellularity
c) Heterotrophic nutrition
d) Sexual reproduction
**Answer: a) Autotrophic nutrition**
**2. Animals that possess a notochord are classified into which phylum?**
a) Mollusca
b) Annelida
c) Chordata
d) Arthropoda
**Answer: c) Chordata**
**3. Insects belong to the phylum:**
a) Porifera
b) Cnidaria
c) Arthropoda
d) Platyhelminthes
**Answer: c) Arthropoda**
**4. The process of shedding the old exoskeleton in arthropods is called:**
a) Ecdysis
b) Excretion
c) Evolution
d) Embryogenesis
**Answer: a) Ecdysis**
**5. Which of the following is a vertebrate?**
a) Octopus
b) Earthworm
c) Starfish
d) Frog
**Answer: d) Frog**
**6. Which of the following is a characteristic feature of mammals?**
a) Gills for respiration
b) Cold-blooded
c) Mammary glands
d) Three-chambered heart
**Answer: c) Mammary glands**
**7. The respiratory surface in insects is called:**
a) Gills
b) Lungs
, c) Tracheae
d) Spiracles
**Answer: c) Tracheae**
**8. Which phylum includes animals with radial symmetry and a water vascular system?**
a) Mollusca
b) Porifera
c) Cnidaria
d) Echinodermata
**Answer: d) Echinodermata**
**9. The largest animal on Earth is the:**
a) African Elephant
b) Blue Whale
c) Giraffe
d) Polar Bear
**Answer: b) Blue Whale**
**10. Flatworms belong to the phylum:**
a) Platyhelminthes
b) Annelida
c) Nematoda
d) Mollusca
**Answer: a) Platyhelminthes**
**11. Which structure is responsible for filtering waste from the blood in vertebrates?**
a) Nephron
b) Alveoli
c) Neuron
d) Ovule
**Answer: a) Nephron**
**12. Birds belong to which class of vertebrates?**
a) Amphibia
b) Aves
c) Mammalia
d) Reptilia
**Answer: b) Aves**
**13. Which of the following is not a function of the skeletal system?**
a) Support
b) Protection
c) Hormone production
d) Movement
**Answer: c) Hormone production**
**14. In which phylum do organisms have stinging cells called nematocysts?**
a) Porifera
