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Biology & Life Sciences Quiz
Biology & Life Sciences · Hard
19 questions · Unlimited attempts · Free online practice
Life on Earth exists in an extraordinary variety of forms, from microscopic cells to towering trees and complex animal species. Biology helps us understand how living organisms gro...
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All 19 questions in this Biology & Life Sciences quiz
-
Which animal is a 'keystone species'?
- A. Fly
- B. Mosquito
- C. Pigeon
- D. Sea Otter
-
Which organelle is absent in animal cell?
- A. Mitochondria
- B. Cell wall
- C. Nucleus
- D. Ribosome
-
How many valves does a human heart have?
- A. 3
- B. 2
- C. 4
- D. 5
-
How many pairs of ribs does a human have?
- A. 14
- B. 24
- C. 10
- D. 12
-
What is the study of birds called?
- A. Entomology
- B. Ichthyology
- C. Herpetology
- D. Ornithology
-
Which organ is known as the 'graveyard of RBCs'?
- A. Kidney
- B. Spleen
- C. Liver
- D. Heart
-
What is the most common blood type?
- A. B negative
- B. O positive
- C. A positive
- D. AB negative
-
Which part of the cell is known as the 'protein factory'?
- A. Vacuole
- B. Ribosome
- C. Mitochondria
- D. Nucleus
-
Which animal has three hearts?
- A. Octopus
- B. Whale
- C. Elephant
- D. Shark
-
Which bird was famously affected by DDT?
- A. Pigeon
- B. Sparrow
- C. Bald Eagle
- D. Robin
-
Which scientist proposed evolution?
- A. Einstein
- B. Galileo
- C. Darwin
- D. Newton
-
What is the powerhouse of cell?
- A. Golgi body
- B. Mitochondria
- C. Nucleus
- D. Ribosome
-
Which part of the brain controls balance and coordination?
- A. Cerebrum
- B. Brainstem
- C. Cerebellum
- D. Thalamus
-
Which enzyme digests protein?
- A. Amylase
- B. Lipase
- C. Trypsin
- D. Pepsin
-
Which plant is known as the 'living fossil'?
- A. Pine
- B. Moss
- C. Fern
- D. Ginkgo Biloba
-
Which animal never drinks water in its entire life?
- A. Elephant
- B. Camel
- C. Kangaroo Rat
- D. Snake
-
Which tree species is the oldest living organism on Earth?
- A. Giant Sequoia
- B. Redwood
- C. Baobab
- D. Bristlecone Pine
-
Which organ uses insulin?
- A. Kidney
- B. Stomach
- C. Liver
- D. Pancreas
-
Which animal is a mammal that lays eggs?
- A. Opossum
- B. Kangaroo
- C. Koala
- D. Platypus