1. Which of the following is NOT a characteristic of animals in the kingdom Animalia?
a) Multicellular
b) Autotrophic nutrition
c) Heterotrophic nutrition
d) Presence of tissues
Answer: b) Autotrophic nutrition
2. Which phylum is characterized by radial symmetry and a water vascular system?
a) Arthropoda
b) Echinodermata
c) Chordata
d) Mollusca
Answer: b) Echinodermata
3. The major characteristic feature of phylum Chordata is the presence of:
a) A closed circulatory system
b) A notochord
c) Exoskeleton
d) Bilateral symmetry
Answer: b) A notochord
4. Which phylum includes organisms that possess a coelom and segmented bodies?
a) Arthropoda
b) Annelida
c) Cnidaria
d) Mollusca
Answer: b) Annelida
5. What is the body symmetry found in members of phylum Cnidaria?
a) Bilateral symmetry
b) Radial symmetry
c) Asymmetry
d) None of the above
Answer: b) Radial symmetry
6. Which of the following animals belong to phylum Arthropoda?
a) Snakes
b) Spiders
c) Jellyfish
d) Starfish
Answer: b) Spiders
7. Phylum Mollusca includes all the following EXCEPT:
a) Snails
b) Octopuses
c) Earthworms
d) Clams
Answer: c) Earthworms
8. Which of these features is found in members of phylum Platyhelminthes?
a) Bilateral symmetry
b) Radial symmetry
c) Exoskeleton
d) Segmentation
Answer: a) Bilateral symmetry
9. Which of the following is NOT a characteristic of phylum Porifera?
a) Porous body
b) Radial symmetry
c) Lack of true tissues
d) Presence of a coelom
Answer: d) Presence of a coelom
10. Animals with a notochord, dorsal nerve cord, and pharyngeal slits belong to which phylum?
a) Mollusca
b) Chordata
c) Echinodermata
d) Arthropoda
Answer: b) Chordata
11. Which of the following classes is a part of phylum Chordata?
a) Mammalia
b) Amphibia
c) Aves
d) All of the above
Answer: d) All of the above
12. Which phylum is characterized by the presence of exoskeleton and jointed legs?
a) Arthropoda
b) Mollusca
c) Annelida
d) Cnidaria
Answer: a) Arthropoda
13. The animals of which phylum have a simple body organization and are commonly known as flatworms?
a) Cnidaria
b) Platyhelminthes
c) Nematoda
d) Annelida
Answer: b) Platyhelminthes
14. Which phylum includes organisms that possess a hard external shell, a mantle, and a foot?
a) Mollusca
b) Annelida
c) Arthropoda
d) Echinodermata
Answer: a) Mollusca
15. The animals of which phylum are exclusively marine and have a water vascular system for movement?
a) Arthropoda
b) Echinodermata
c) Cnidaria
d) Porifera
Answer: b) Echinodermata
16. The presence of segmented bodies and paired appendages is characteristic of which phylum?
a) Mollusca
b) Arthropoda
c) Annelida
d) Platyhelminthes
Answer: b) Arthropoda
17. What is the common feature of all animals belonging to the phylum Cnidaria?
a) Radial symmetry and stinging cells
b) Bilateral symmetry and segmented bodies
c) Soft bodies and exoskeleton
d) Presence of a notochord
Answer: a) Radial symmetry and stinging cells
18. What is the primary characteristic of animals in phylum Nematoda?
a) Bilateral symmetry and exoskeleton
b) Radial symmetry and stinging cells
c) Bilateral symmetry and a pseudocoelom
d) Segmentation and jointed legs
Answer: c) Bilateral symmetry and a pseudocoelom
19. Which of the following animals would be classified in phylum Chordata?
a) Fish
b) Birds
c) Humans
d) All of the above
Answer: d) All of the above
20. What is the primary difference between the classes Arachnida and Insecta within phylum Arthropoda?
a) The number of legs
b) The presence of wings
c) The type of respiratory system
d) The type of circulatory system
Answer: a) The number of legs
21. Which of the following is a feature of all animals in the phylum Annelida?
a) Radial symmetry
b) A true coelom
c) Exoskeleton
d) Pharyngeal slits
Answer: b) A true coelom
22. Which of the following phyla includes the largest number of species?
a) Chordata
b) Arthropoda
c) Mollusca
d) Cnidaria
Answer: b) Arthropoda
23. The presence of a hydrostatic skeleton is a characteristic of animals in which phylum?
a) Mollusca
b) Annelida
c) Nematoda
d) Platyhelminthes
Answer: c) Nematoda
24. Which of the following is true about the class Amphibia of phylum Chordata?
a) They live only on land
b) They have lungs and gills
c) They have an exoskeleton
d) They are cold-blooded and lay eggs in water
Answer: d) They are cold-blooded and lay eggs in water
25. What type of circulatory system do most members of phylum Arthropoda possess?
a) Open circulatory system
b) Closed circulatory system
c) Both open and closed
d) No circulatory system
Answer: a) Open circulatory system
26. Which phylum has the largest number of species in the animal kingdom?
a) Arthropoda
b) Mollusca
c) Cnidaria
d) Chordata
Answer: a) Arthropoda
27. Which of the following phyla has members that are both aquatic and terrestrial?
a) Mollusca
b) Amphibia
c) Echinodermata
d) Arthropoda
Answer: b) Amphibia
28. What type of symmetry is present in animals of phylum Cnidaria?
a) Radial symmetry
b) Bilateral symmetry
c) Asymmetry
d) None of the above
Answer: a) Radial symmetry
29. Which of the following animals belongs to the phylum Mollusca?
a) Snail
b) Earthworm
c) Jellyfish
d) Shark
Answer: a) Snail
30. What is the key characteristic feature of animals in phylum Arthropoda?
a) Bilateral symmetry and a hard outer skeleton
b) Radial symmetry and a soft body
c) Segmented bodies and a water vascular system
d) A notochord and a dorsal nerve cord
Answer: a) Bilateral symmetry and a hard outer skeleton
