Try each question on your own first. Use the Show Answer button only after you have selected your option, then read the explanation and revise the related concept from your chapter notes.
1. Who proposed the Five Kingdom Classification system of living organisms?
A. Carl Linnaeus
B. Robert Whittaker
C. Ernst Haeckel
D. Carl Woese
Answer: B. Robert Whittaker
Explanation: R.H. Whittaker proposed the five kingdom system in 1969: Monera, Protista, Fungi, Plantae, and Animalia.
2. Organisms belonging to Kingdom Monera are characterized by being:
A. Unicellular Eukaryotes
B. Multicellular Eukaryotes
C. Unicellular Prokaryotes
D. Multicellular Prokaryotes
Answer: C. Unicellular Prokaryotes
Explanation: Kingdom Monera consists of unicellular organisms that lack a defined nucleus and membrane-bound organelles (e.g., bacteria, blue-green algae).
3. Which group of plants is known as the "Amphibians of the Plant Kingdom"?
A. Thallophyta
B. Bryophyta
C. Pteridophyta
D. Gymnosperms
Answer: B. Bryophyta
Explanation: Bryophytes (like Moss and Marchantia) live in soil but require water for sexual reproduction, making them amphibians of the plant world.
4. Plants with naked seeds that do not produce flowers belong to which group?
A. Angiosperms
B. Gymnosperms
C. Pteridophytes
D. Bryophytes
Answer: B. Gymnosperms
Explanation: 'Gymnos' means naked and 'sperma' means seed. Gymnosperms bear naked seeds, usually in cones (e.g., Pinus, Cycas).
5. Which phylum is the largest group in the Animal Kingdom, characterized by jointed legs?
A. Annelida
B. Arthropoda
C. Mollusca
D. Echinodermata
Answer: B. Arthropoda
Explanation: Arthropoda is the largest phylum in animalia, featuring bilateral symmetry, segmented bodies, and jointed appendages (e.g., insects, spiders, crabs).
6. Pores/holes all over the body are a characteristic feature of which animal phylum?
A. Porifera
B. Coelenterata
C. Platyhelminthes
D. Nematoda
Answer: A. Porifera
Explanation: Porifera means 'pore-bearing'. These non-motile animals (like Sponges, Sycon) have pores leading to a canal system for circulating water.
7. Which class of vertebrates has a three-chambered heart (except crocodiles) and lays eggs in water?
A. Pisces
B. Amphibia
C. Aves
D. Mammalia
Answer: B. Amphibia
Explanation: Amphibians (frogs, toads, salamanders) have a 3-chambered heart, cold-blooded metabolism, and adapt to both land and aquatic environments.
8. Who is known as the "Father of Taxonomy" for introducing binomial nomenclature?
A. Charles Darwin
B. Gregor Mendel
C. Carl Linnaeus
D. Aristotle
Answer: C. Carl Linnaeus
Explanation: Carl Linnaeus devised the system of binomial nomenclature (Genus + Species) and laying the groundwork for modern taxonomy.
9. Flatworms (like Planaria and Tapeworm) belong to which phylum?
A. Nematoda
B. Platyhelminthes
C. Annelida
D. Coelenterata
Answer: B. Platyhelminthes
Explanation: Platyhelminthes consists of dorsoventrally flattened organisms commonly referred to as flatworms.
10. Warm-blooded animals with a four-chambered heart and mammary glands belong to class:
A. Reptilia
B. Amphibia
C. Aves
D. Mammalia
Answer: D. Mammalia
Explanation: Mammals are warm-blooded, have 4-chambered hearts, produce milk for young via mammary glands, and typically have hair on skin.
This page contains a chapter-wise objective practice set. Try the questions without checking the answer first, then use the explanation to understand the point you missed. The current page contains 10 questions, so you can practise in smaller sets when you are revising.
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