Explore topic-wise MCQs in Biology.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

A fish which is taken and brought to land dies within a few minutes because of _____

A. global warming
B. high temperature
C. pressure absence
D. inability to respire
Answer» E.
2.

Which vertebrates have the most well-developed respiratory system?

A. Mammals
B. Reptiles
C. Aves
D. Amphibians
Answer» B. Reptiles
3.

Which organism classification can breathe through moist skin?

A. Birds
B. Mammals
C. Reptiles
D. Amphibians
Answer» E.
4.

Aquatic arthropods and mollusks use which organ for respiration?

A. Lungs
B. Gills
C. Eyes
D. Nose
Answer» C. Eyes
5.

Tracheal tubes are present for which type of organisms?

A. Birds
B. Worms
C. Frogs
D. Insects
Answer» E.
6.

Earthworms respire through organs called as ______

A. Trachea
B. Cuticle
C. Book lungs
D. Heart
Answer» C. Book lungs
7.

Which of the following organisms undergo respiration through diffusion?

A. Sponges
B. Mammals
C. Bats
D. Whales
Answer» B. Mammals
8.

The respiration mechanism of an organism mainly depends on which of the following?

A. Survival instincts
B. Habitats
C. Levels of situation
D. Habits
Answer» C. Levels of situation
9.

Carbon dioxide is harmful to the body.

A. True
B. False
Answer» B. False
10.

The process which involves the gaseous exchange between the organism and its environment is called as _______

A. Metabolism
B. Photosynthesis
C. Respiration
D. Exchange process
Answer» D. Exchange process