Chapter Exam

Chapter-4 Animals — Online MCQ Test

Q: What is the primary characteristic that distinguishes birds from other animals?

Answer: B. They have feathers and lay eggs — Feathers and egg-laying are the defining characteristics of birds. These features separate birds from all other animal groups.

Q: Which of the following is NOT a bird?

Answer: C. Bat — Bat is a mammal, not a bird. Although bats can fly, they lack feathers and lay live young instead of eggs.

Q: How do birds communicate with each other?

Answer: B. Through color, songs, and calls — Birds communicate using various methods including distinctive songs, calls, display of colorful plumage, and body movements to convey messages.

ENGLISH · Grade 7 · CBSE(NCERT)

Practice Chapter-4 Animals with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 7 ENGLISH. This chapter covers: Birds. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-4 Animals — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 7 ENGLISH — Chapter-4 Animals, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the primary characteristic that distinguishes birds from other animals?

A. They have four legs
B. They have feathers and lay eggs ✓
C. They live only in trees
D. They are all carnivorous

Answer: B. They have feathers and lay eggs
Feathers and egg-laying are the defining characteristics of birds. These features separate birds from all other animal groups.

Which of the following is NOT a bird?

A. Sparrow
B. Eagle
C. Bat ✓
D. Pigeon

Answer: C. Bat
Bat is a mammal, not a bird. Although bats can fly, they lack feathers and lay live young instead of eggs.

How do birds communicate with each other?

A. Through touch only
B. Through color, songs, and calls ✓
C. Birds do not communicate
D. Only through body movements

Answer: B. Through color, songs, and calls
Birds communicate using various methods including distinctive songs, calls, display of colorful plumage, and body movements to convey messages.

Compare the skeletal structure of birds and mammals. Why are bird bones different?

A. Bird bones are heavier to support larger muscles
B. Bird bones are hollow to reduce weight while maintaining strength for flight ✓
C. Bird bones are made of different material than mammal bones
D. There is no difference between bird and mammal bones

Answer: B. Bird bones are hollow to reduce weight while maintaining strength for flight
Bird bones are distinctly hollow with air sacs, providing the strength-to-weight ratio necessary for flight, unlike solid mammal bones.

A researcher observes a bird species that has recently developed a shorter beak length in urban populations compared to rural ones. What evolutionary process might explain this?

A. Natural selection favoring shorter beaks due to available urban food sources ✓
B. Beaks intentionally shrink in cities
C. Urban birds are a different species
D. This change cannot occur through evolution

Answer: A. Natural selection favoring shorter beaks due to available urban food sources
This demonstrates adaptive evolution: urban environments with different food types (softer seeds, processed food) may favor shorter beaks, selecting for this trait over generations.