Animal Kingdom
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Basis of classification
SubtopicBasis of classification under Animal Kingdom for Grade 11 CBSE.
Preview questions (no answers)
- 1.
The notochord is located on which side of the body in chordates?
A.Ventral
B.Dorsal
C.Lateral
D.Anterior
- 2.
Which of the following is a characteristic of Porifera?
A.Cellular level of organization
B.Presence of coelom
C.Radial symmetry
D.Complete digestive system
- 3.
Organ system level of organization is absent in:
A.Mollusca
B.Echinodermata
C.Chordata
D.Ctenophora
- 4.
An example of an animal with an incomplete digestive system is:
A.B.C.D. - 5.
Radial symmetry is often associated with which lifestyle?
A.Fast swimming
B.Highly active hunting
C.Sessile or slow-moving existence
D.Terrestrial burrowing
- 6.
Which germ layer is responsible for the formation of the nervous system?
A.Ectoderm
B.Mesoderm
C.Endoderm
D.Mesoglea
- 7.
The mesoderm is present as scattered pouches between the ectoderm and endoderm in:
A.Acoelomates
B.Pseudocoelomates
C.Coelomates
D.All triploblastic animals
- 8.
Based on the patterns of the 'Circulatory System', why is the system in Octopus (a Mollusc) considered an exception to most other Molluscs?
A.It has an open circulatory system like insects.
B.It lacks a heart and uses only cilia for transport.
C.It has a closed circulatory system, unlike the typical open system of the phylum.
D.It uses water instead of blood for gas transport.
- 9.
In the classification of animals, 'Segmentation' is a primary feature. Which of these animals shows internal segmentation but lacks external segmentation?
A.Pheretima (Earthworm)
B.Periplaneta (Cockroach)
C.Homo sapiens (Human)
D.Nereis
- 10.
Which of the following is a key reason why the phylum Aschelminthes is classified as 'Pseudocoelomate'?
A.The body cavity is lined by mesoderm only on the inner side.
B.The mesoderm is completely absent, and the cavity is filled with water.
C.The body cavity (blastocoel) is not lined by mesoderm, and mesoderm is only present as pouches.
D.The coelom is formed by the fusion of many cells.
Download the worksheet for Animal Kingdom - Basis of classification to practice offline. It includes additional chapter-level practice questions.
Salient features and classification of Non-chordates (Phyla Porifera to Echinodermata)
SubtopicSalient features and classification of Non-chordates (Phyla Porifera to Echinodermata) under Animal Kingdom for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which phylum consists of triploblastic, acoelomate animals with bilateral symmetry?
A.Aschelminthes
B.Platyhelminthes
C.Annelida
D.Arthropoda
- 2.
What type of fertilization is typically observed in Echinoderms?
A.Internal
B.External
C.Both internal and external
D.None of the above
- 3.
Meandrina is the scientific name for which animal?
A.Sea fan
B.Sea pen
C.Brain coral
D.Sea anemone
- 4.
In Cnidarians, the central cavity where digestion takes place is called the:
A.Spongocoel
B.Gastro-vascular cavity
C.Pseudocoelom
D.Coelom
- 5.
The name 'Cnidaria' is derived from the 'cnidoblasts' or 'cnidocytes'. These cells contain the stinging capsules known as:
A.Nematocytes
B.Nematocysts
C.Choanocytes
D.Statocysts
- 6.
Which of the following Annelids has a closed circulatory system?
A.Pheretima
B.Nereis
C.Hirudinaria
D.Both Pheretima and Nereis
- 7.
In sponges, the central cavity is known as the:
A.Gastrovascular cavity
B.Spongocoel
C.Coelom
D.Pseudocoel
- 8.
Which of the following features is unique to the phylum Echinodermata among non-chordates?
A.Bilateral symmetry in adults
B.Mesodermal endoskeleton of calcareous ossicles
C.Schizocoelous coelom
D.Presence of a closed circulatory system
- 9.
In Arthropoda, 'Coxal glands' are excretory organs found specifically in:
A.Insects
B.Crustaceans
C.Arachnids
D.Centipedes
- 10.
The shell of Mollusca is secreted by the:
A.Visceral hump
B.Mantle (Pallium)
C.Muscular foot
D.Radula
Download the worksheet for Animal Kingdom - Salient features and classification of Non-chordates (Phyla Porifera to Echinodermata) to practice offline. It includes additional chapter-level practice questions.
Salient features and classification of Chordates
SubtopicSalient features and classification of Chordates under Animal Kingdom for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which of these is NOT a member of Class Amphibia?
A.Bufo
B.Rana
C.Chelone
D.Salamandra
- 2.
Mammals have a muscular partition that helps in breathing, known as the:
A.Pleura
B.Pericardium
C.Diaphragm
D.Peritoneum
- 3.
Which of the following is a characteristic feature of Crocodiles that is unusual for reptiles?
A.Three-chambered heart
B.Four-chambered heart
C.Two-chambered heart
D.No heart
- 4.
In which group of chordates is the tail lost in the adult stage but present in the larva?
A.Cephalochordata
B.Urochordata
C.Cyclostomata
D.Reptilia
- 5.
Which of the following characters is shared by both Branchiostoma and Petromyzon?
A.Presence of jaws
B.Presence of a notochord at some stage
C.Presence of a cranium
D.Parasitic nature
- 6.
In Class Osteichthyes, the heart is two-chambered. What kind of blood does it typically pump?
A.Oxygenated blood only
B.Deoxygenated blood only (Venous heart)
C.Mixed blood
D.Partially oxygenated blood
- 7.
What is the nature of fertilization in Class Amphibia?
A.Always internal
B.Mostly external
C.Absent (asexual)
D.Internal in frogs, external in salamanders
- 8.
What is the function of 'Chloride cells' found in the gill epithelium of marine Osteichthyes?
A.Absorption of oxygen from the surrounding water.
B.Active secretion of excess salts into the seawater.
C.Production of mucus to trap food particles.
D.Storage of calcium for skeletal growth.
- 9.
Which of the following is a characteristic of the nervous system in the Subphylum Cephalochordata?
A.A well-defined brain protected by a bony cranium.
B.A dorsal hollow nerve cord without a differentiated brain.
C.A ventral solid nerve cord with segmental ganglia.
D.A nerve net similar to that of Coelenterates.
- 10.
Identify the incorrect statement regarding the Class Chondrichthyes.
A.They have a persistent notochord throughout life.
B.They possess a swim bladder for regulating buoyancy.
C.Their skin is tough and contains minute placoid scales.
D.The mouth is located ventrally.
Download the worksheet for Animal Kingdom - Salient features and classification of Chordates to practice offline. It includes additional chapter-level practice questions.