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Quiz Chapter 1: Biodiversity

10 questions · Form 2 Science Bab 1: Biodiversity

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Which characteristic differentiates dicotyledonous plants from monocotyledonous plants?

  1. Possession of parallel leaf venation
  2. Presence of a fibrous root system
  3. Presence of two cotyledons in the seed
  4. Absence of vascular bundles in the stem
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Answer: C

Dicotyledonous seeds contain two cotyledons, whereas monocotyledonous seeds contain only one.

2. How do reptiles differ from amphibians in terms of egg structures?

  1. Reptiles lay eggs covered with a hard or leathery shell
  2. Reptiles lay soft eggs covered in a jelly-like layer
  3. Amphibians lay eggs protected by a thick calcareous shell
  4. Reptiles do not lay eggs and always give birth to live young
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Answer: A

Reptile eggs have a protective leathery or hard shell to prevent dehydration on land, while amphibian eggs are laid in water surrounded by jelly.

3. How does human deforestation directly affect biodiversity?

  1. It increases the overall number of endemic species
  2. It causes habitat destruction, leading to species endangerment
  3. It promotes balanced food chains across ecosystems
  4. It expands natural in-situ conservation areas
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Answer: B

Deforestation destroys natural ecosystems, causing loss of food and shelter for wildlife and reducing global biodiversity.

4. Which method represents an example of in-situ conservation?

  1. Setting up seed banks for endangered crops
  2. Establishing a national park to protect natural habitats
  3. Breeding animals inside a city zoo
  4. Cultivating wild flowers in a botanical garden
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Answer: B

In-situ conservation protects species within their natural habitat (e.g., national parks, forest reserves).

5. Which plant group reproduces by producing spores and lacks a vascular system?

  1. Ferns
  2. Mosses
  3. Conifers
  4. Dicotyledons
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Answer: B

Mosses are non-vascular plants that reproduce via spores. Ferns also use spores but possess a vascular transport system.

6. Which group of animals contains ONLY invertebrates without legs?

  1. Ant, Grasshopper, Butterfly
  2. Spider, Scorpion, Tick
  3. Planaria, Earthworm, Tapeworm
  4. Crab, Prawn, Centipede
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Answer: C

Planaria, earthworms, and tapeworms are all invertebrates without legs.

7. Which pair of characteristics accurately describes a paddy plant?

  1. Taproot system and netted leaf venation
  2. Fibrous root system and parallel leaf venation
  3. Taproot system and parallel leaf venation
  4. Fibrous root system and netted leaf venation
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Answer: B

Paddy is a monocotyledonous plant, meaning it has a fibrous root system and parallel leaf venation.

8. What primary function does a dichotomous key serve in biology?

  1. Determining the exact age of fossilized organisms
  2. Systematically identifying and classifying organisms using paired traits
  3. Measuring the exact rate of photosynthesis in green plants
  4. Calculating the total biomass of a ecosystem
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Answer: B

Dichotomous keys allow scientists to identify unknown organisms based on a series of choices between two contrasting physical features.

9. Which organism is an example of an endemic species in Malaysia?

  1. African Elephant
  2. Rafflesia
  3. Panda Bear
  4. Kangaroo
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Answer: B

Rafflesia is an endemic plant native to specific rainforest areas in Malaysia and Southeast Asia.

10. What is an endemic species?

  1. A species introduced from another country
  2. A species that is completely extinct in the wild
  3. A species found naturally only in a specific geographic area
  4. A species that can survive in all global climates
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Answer: C

Endemic species are native and restricted to a particular geographical region (e.g., the Proboscis Monkey in Borneo).

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