Animal Kingdom is a Class 11 Biology chapter that carries about 3.0% of the Biology questions in NEET. Practise it with 63 questions covering 2 topics, each with an explanation.
Sample questions on Animal Kingdom with answers
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
Question 1: Basis of Classification
Metamerism refers to:
- A the presence of a notochord
- B the body with no segments
- C the body being externally and internally divided into segments with a serial repetition of at least some organs
- D the radial symmetry
Answer: C. the body being externally and internally divided into segments with a serial repetition of at least some organs
Why: For example, the earthworm.
Question 2: Phylum-Level Characteristics
The circulatory system of arthropods is:
- A absent
- B double
- C open
- D closed
Answer: C. open
Why: The body cavity is the haemocoel filled with the blood.
Question 3: Basis of Classification
Animals with a true body cavity completely lined by mesoderm are called:
- A acoelomates
- B pseudocoelomates
- C coelomates
- D diploblastic
Answer: C. coelomates
Why: Coelomates possess a true coelom — a body cavity completely lined by mesoderm on both sides.
Question 4: Phylum-Level Characteristics
Which of the following is the annelid commonly called the 'blood sucker'?
- A the leech, Hirudinaria
- B the earthworm, Pheretima
- C the Aphrodite
- D the Nereis
Answer: A. the leech, Hirudinaria
Why: Pheretima is the earthworm.
Question 5: Basis of Classification
Animals in which the body can be cut into two equal halves along the central axis through any plane show:
- A bilateral symmetry
- B a metamerism
- C asymmetry
- D radial symmetry, e.g. Coelenterates, Ctenophores and Echinoderms
Answer: D. radial symmetry, e.g. Coelenterates, Ctenophores and Echinoderms
Why: Bilateral symmetry has one plane.
Question 6: Phylum-Level Characteristics
The excretory organs of the annelids are:
- A the nephridia
- B the green glands
- C the Malpighian tubules
- D the flame cells
Answer: A. the nephridia
Why: The nephridia also help in osmoregulation.
Question 7: Basis of Classification
In the diploblastic animals, the cellular layer present between the ectoderm and the endoderm is:
- A the epidermis
- B the coelom
- C an undifferentiated mesoglea
- D the mesoderm
Answer: C. an undifferentiated mesoglea
Why: Cnidarians are diploblastic.
Question 8: Phylum-Level Characteristics
The mollusca body is covered by a calcareous shell and is unsegmented, with:
- A a bony skeleton
- B a thick epidermis
- C a hard skin
- D a soft and spongy layer of skin forming the mantle over the visceral hump
Answer: D. a soft and spongy layer of skin forming the mantle over the visceral hump
Why: The mouth contains a file-like rasping organ called the radula.