Kingdom Animalia Features Practice Questions
19 free Kingdom Animalia Features practice questions for the NCERT Biology. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
Which of the following is a universal characteristic of all members of Kingdom Animalia?
- A Presence of a cell wall made of cellulose
- B Autotrophic mode of nutrition
- C Reproduction exclusively through asexual binary fission
- D Multicellular eukaryotic structure without cell walls
Correct answer: Multicellular eukaryotic structure without cell walls
Animals are multicellular eukaryotes that lack cell walls, a feature that distinguishes them from plants, fungi, and many protists. This lack of a rigid cell wall allows for greater mobility and complex tissue organization.
The mode of nutrition in Kingdom Animalia is primarily described as:
- A Holozoic
- B Saprobic
- C Photosynthetic
- D Chemosynthetic
Correct answer: Holozoic
Most animals exhibit holozoic nutrition, which involves the ingestion of solid or liquid organic food followed by internal digestion. They depend directly or indirectly on plants for their food supply.
How do most animals store their reserve food material?
- A Glycogen or Fat
- B Starch or Cellulose
- C Laminarin
- D Paramylon
Correct answer: Glycogen or Fat
Unlike plants which store energy as starch, animals store their excess nutrients in the form of glycogen or fats. These molecules can be efficiently broken down to provide energy during metabolic activities.
Which of the following processes is responsible for the growth of animals into a definite shape and size?
- A A definite growth pattern followed by an adult stage
- B Indeterminate growth throughout life
- C Continuous cell division in apical meristematic tissues
- D Fragmentation and regeneration
Correct answer: A definite growth pattern followed by an adult stage
Animals typically follow a definite growth pattern, reaching a specific shape and size upon reaching adulthood. This is a contrast to many plants, which exhibit indeterminate growth through specialized tissues.
Higher forms of animals exhibit which of the following advanced features?
- A Elaborate sensory and neuromotor mechanisms
- B Simple diffusion for all bodily functions
- C Lack of specialized tissues
- D Presence of chlorophyll for supplementary energy
Correct answer: Elaborate sensory and neuromotor mechanisms
Higher animal species have developed complex sensory organs and nervous systems (neuromotor mechanisms). These allow them to perceive environmental changes and respond with coordinated movements.
Sexual reproduction in Kingdom Animalia is generally characterized by:
- A Copulation followed by embryological development
- B Production of spores
- C Conjugation of vegetative cells
- D Budding and gemmule formation as the primary method
Correct answer: Copulation followed by embryological development
Sexual reproduction in animals typically involves the copulation of male and female individuals, leading to the fusion of gametes. This process is followed by a distinct period of embryological development before the offspring matures.
Which of the following is NOT a characteristic feature of Kingdom Animalia?
- A Heterotrophic nutrition
- B Locomotion
- C Eukaryotic cell structure
- D Cell wall made of chitin
Correct answer: Cell wall made of chitin
A cell wall made of chitin is a defining characteristic of Kingdom Fungi, not Animalia. Animal cells are characterized by the complete absence of any cell wall.
The capability of locomotion in animals is primarily used for:
- A Finding food, mates, and shelter
- B Performing photosynthesis
- C Fixing themselves to a substrate permanently
- D Absorbing minerals from the soil
Correct answer: Finding food, mates, and shelter
Most animals are capable of locomotion, which is an active movement from one place to another. This ability is crucial for survival, allowing them to seek out food, find partners for reproduction, and escape predators.
Members of Kingdom Animalia are:
- A Unicellular prokaryotes
- B Unicellular eukaryotes
- C Multicellular prokaryotes
- D Multicellular eukaryotes
Correct answer: Multicellular eukaryotes
By definition, the animal kingdom comprises organisms that are multicellular and possess eukaryotic cells (cells with a membrane-bound nucleus and organelles). Unicellular eukaryotes are instead classified under Kingdom Protista.
The transition from a zygote to a multicellular organism in animals involves:
- A Embryological development
- B Direct conversion to adult via mitosis without stages
- C Spore formation
- D Formation of a fruiting body
Correct answer: Embryological development
Following fertilization, the zygote undergoes a series of developmental stages known as embryology. This process involves cell division, tissue differentiation, and organogenesis to form a complex individual.
Which statement best describes the response of animals to external stimuli?
- A They are passive and do not respond
- B They show slow growth-mediated movements
- C They respond quickly via nervous and sensory systems
- D They respond only to chemical changes through hormonal signals
Correct answer: They respond quickly via nervous and sensory systems
Due to the presence of a nervous system and specialized sensory receptors, animals can detect and react to external stimuli very quickly. This rapid coordination is a key functional difference between animals and plants.
Which group within Animalia might show a lack of complex sensory systems?
- A Vertebrates
- B Arthropods
- C Porifera
- D Molluscs
Correct answer: Porifera
While higher animals have elaborate neuromotor systems, lower forms like sponges (Porifera) lack true tissues and a centralized nervous system. However, they still belong to Animalia due to their multicellular, heterotrophic, and eukaryotic nature.
The primary role of the 'Adult' stage in the growth pattern of animals is:
- A To remain in a juvenile state
- B To attain definite shape and reproduce
- C To develop a cell wall
- D To switch to an autotrophic mode of nutrition
Correct answer: To attain definite shape and reproduce
In the animal growth pattern, once an organism reaches the adult stage, it has attained its definite shape and size. At this stage, the organism is typically biologically mature enough to engage in reproduction.
In the five-kingdom classification, why are protozoans excluded from Kingdom Animalia?
- A They are autotrophic
- B They are unicellular
- C They have cell walls
- D They do not move
Correct answer: They are unicellular
Although protozoans share heterotrophic and motile characteristics with animals, they are unicellular. According to Whittaker’s classification, all unicellular eukaryotes are placed in Kingdom Protista.
Which feature helps animals in internalizing the energy from their food?
- A Large food-storage vacuoles
- B Internal digestive system
- C Contractile vacuoles
- D Thylakoids
Correct answer: Internal digestive system
Animals possess an internal digestive system (ranging from simple cavities to complex tracts) that allows them to break down ingested organic matter into simpler molecules for absorption into their cells.
Animal cells are distinguished from plant cells by the absence of:
- A Mitochondria
- B Plasmids
- C Plastids
- D Ribosomes
Correct answer: Plastids
Animal cells do not contain plastids, such as chloroplasts, because they are heterotrophic and do not perform photosynthesis. The absence of both cell walls and plastids are key cytological differences.
The hierarchy of complexity in Kingdom Animalia starts from which level?
- A Prokaryotic level
- B Cellular level
- C Organ system level
- D Tissue level
Correct answer: Cellular level
Within Kingdom Animalia, the level of organization starts from the cellular level (as seen in sponges) and progresses to tissue, organ, and finally complex organ system levels in higher phyla.
Why is 'Heterotrophism' a salient feature of Kingdom Animalia?
- A Because they produce their own food from CO2
- B Because they rely on food from other organisms
- C Because they fix atmospheric nitrogen
- D Because they can live in extreme volcanic vents
Correct answer: Because they rely on food from other organisms
Animals cannot synthesize their own food from inorganic sources. They must consume organic carbon (plants or other animals) to obtain the energy and nutrients necessary for life.
The characteristic 'Definite shape and size' in animals is an outcome of:
- A Determinate growth
- B Unlimited growth
- C Environmental pressure only
- D Lack of genetic material
Correct answer: Determinate growth
Animals exhibit limited or determinate growth. Once they reach a genetically predetermined size and maturity, growth significantly slows or stops, resulting in a consistent and definite body form.