ACME ACADEMY

WEEKLY EVALUATION TEST

Subject: Science
Time Limit: 20 Mins
Max Marks: 20 Marks
Student Name:
Roll Number:
Class / Sec:
Date:

GENERAL INSTRUCTIONS:

  1. All questions are compulsory. Carefully read all instructions before starting.
  2. The question paper contains 20 questions.
  3. There is no negative marking for incorrect answers.
  4. Use of mobile phones, smartwatches, or calculators is strictly prohibited during the exam.
1. Which biologist proposed the widely used Five Kingdom Classification system in 1969?
[1 Mark]
(A) Carolus Linnaeus
(B) Aristotle
(C) Robert H. Whittaker
(D) Carl Woese
2. Under the Five Kingdom Classification, which kingdom exclusively contains unicellular prokaryotic organisms like bacteria?
[1 Mark]
(A) Protista
(B) Fungi
(C) Monera
(D) Animalia
3. What is the scientific system of giving every organism a unique two-part Latin name called?
[1 Mark]
(A) Binomial nomenclature
(B) Dual classification
(C) Hierarchical taxonomy
(D) Domain classification
4. Which group of plants is often referred to as the 'amphibians of the plant kingdom' because they live on land but require water for reproduction?
[1 Mark]
(A) Thallophyta (Algae)
(B) Bryophyta (Mosses)
(C) Gymnosperms (Pines)
(D) Angiosperms (Flowering plants)
5. Which phylum of the animal kingdom is characterized by organisms having jointed appendages and a hard external skeleton (exoskeleton)?
[1 Mark]
(A) Annelida
(B) Nematoda
(C) Arthropoda
(D) Mollusca
6. Why did scientists find Aristotle's ancient classification of animals inadequate?
[1 Mark]
(A) Because all animals live on land.
(B) Because it relied only on easily observable habitats, grouping highly unrelated animals together (like fish and whales).
(C) Because Aristotle did not write it down.
(D) Because it included plants.
7. What is the defining feature that separates eukaryotic cells (found in Protista, Fungi, Plantae, Animalia) from prokaryotic cells (found in Monera)?
[1 Mark]
(A) Presence of a cell wall.
(B) Ability to move.
(C) Presence of a true, membrane-bound nucleus.
(D) Multicellularity.
8. Fungi were separated from the plant kingdom into their own kingdom primarily because:
[1 Mark]
(A) They are unicellular.
(B) They are heterotrophic saprophytes that absorb nutrients, whereas plants are autotrophic.
(C) They do not have a cell wall.
(D) They live in water.
9. In plant evolution, which group was the first to develop specialised vascular tissues (xylem and phloem) for transporting water and food, though they still do not produce seeds?
[1 Mark]
(A) Bryophyta
(B) Pteridophyta (Ferns)
(C) Gymnosperms
(D) Angiosperms
10. How do Angiosperms fundamentally differ from Gymnosperms regarding their seeds?
[1 Mark]
(A) Angiosperms do not produce seeds.
(B) Gymnosperm seeds are enclosed in fruits, while Angiosperm seeds are naked.
(C) Angiosperm seeds are enclosed within fruits, while Gymnosperm seeds are exposed (naked).
(D) Angiosperms only reproduce asexually.
11. What evolutionary advantage does a true body cavity (coelom) and segmentation provide to animals like Annelids (earthworms)?
[1 Mark]
(A) It allows them to photosynthesise.
(B) It provides greater flexibility, precise control of movement, and space for complex organ systems.
(C) It allows them to fly.
(D) It replaces the need for a digestive system.
12. What is a 'biodiversity hotspot'?
[1 Mark]
(A) A very hot desert region with no life.
(B) An area with active volcanoes.
(C) A region that supports a large number of endemic species and has suffered significant habitat loss.
(D) A zoo in a major city.
13. Assertion (A): The scientific name of the tiger is correctly written as Panthera tigris. Reason (R): In binomial nomenclature, the genus name begins with a capital letter, the species name is all lowercase, and the name is italicised when printed.
[1 Mark]
(A) Both A and R are true, and R is the correct explanation of A.
(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
14. If you discover a multicellular organism that lacks a cell wall and relies entirely on consuming other organisms for food, into which kingdom must it be placed?
[1 Mark]
(A) Plantae
(B) Fungi
(C) Protista
(D) Animalia
15. Arrange the biological classification hierarchy in the correct order from the broadest to the most specific.
[1 Mark]
(A) Kingdom, Class, Phylum, Order, Genus, Family, Species
(B) Kingdom, Phylum, Class, Order, Family, Genus, Species
(C) Species, Genus, Family, Order, Class, Phylum, Kingdom
(D) Phylum, Kingdom, Order, Class, Family, Genus, Species
16. Lichens are a classic example of a symbiotic relationship acting as bioindicators for air pollution. Which two types of organisms form a lichen?
[1 Mark]
(A) A bacterium and a virus
(B) A plant root and an earthworm
(C) An autotrophic alga and a heterotrophic fungus
(D) Two different species of fungi
17. While observing a microscopic drop of pond water, a student spots a single-celled organism actively moving using cilia and containing a distinct nucleus. Which kingdom does it belong to?
[1 Mark]
(A) Monera
(B) Protista
(C) Fungi
(D) Plantae
18. Why do scientists use DNA and genetic similarity as the ultimate tool for modern classification (like the Three Domain System)?
[1 Mark]
(A) Because external appearances can be misleading due to different environments, while DNA directly reveals evolutionary ancestry and relationships.
(B) Because DNA is visible to the naked eye.
(C) Because all animals have exactly the same DNA.
(D) Because Aristotle recommended it.
19. Which vertebrate group is characterised by having a constant body temperature, hair or fur, and mammary glands to nourish their young?
[1 Mark]
(A) Amphibians
(B) Reptiles
(C) Birds
(D) Mammals
20. Fossils of ancient cyanobacteria (stromatolites) found in India are critical to evolutionary history because:
[1 Mark]
(A) They are the direct ancestors of dinosaurs.
(B) They provide evidence of the first organisms to produce oxygen, which gradually made the Earth's atmosphere suitable for other life.
(C) They prove that plants evolved before bacteria.
(D) They are made of solid gold.

Official Answer Key (For Teachers)

Q1
C
Q2
C
Q3
A
Q4
B
Q5
C
Q6
B
Q7
C
Q8
B
Q9
B
Q10
C
Q11
B
Q12
C
Q13
A
Q14
D
Q15
B
Q16
C
Q17
B
Q18
A
Q19
D
Q20
B
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