IGCSE Biology Paper-3: Specimen Questions with Answers 222 - 225 of 230

Question number: 222

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Which of the following properties are different in a shark and a whale?

Explanation

Whales are mammals and sharks are fish. When whales produce young ones, sharks lay eggs. Whales have bones and sharks do not have bones but only cartilage. Whales are bigger than sharks. When a whale weighs more than 100 tons, the shark weighs about 2,000 kg. Sharks hunt for their food. Whales do not have this hunting tendency. Whales produce sound by which they communicate with each other and search for food. Whales produce many types of noise and even sing. Sharks do not have these types of communication skills.

Question number: 223

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Give examples of all types of asexual reproduction process.

Explanation

Binary Fission- archaea, bacteria

  • Budding-hydra
  • Vegetative reproduction- rhizomes
  • Spore-Fungi
  • Fragmentation-Most lichens

Passage

The greenhouse effect is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a temperature above what it would be in the absence of its atmosphere.

Question number: 224 (1 of 3 Based on Passage) Show Passage

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Explain the greenhouse effect by diagram.

Explanation

Figure shows the process of green house effect

Figure Shows the Process of Green House Effect

Figure shows process of green house effect by which temperature is increase on earth surface

Question number: 225 (2 of 3 Based on Passage) Show Passage

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Can we say that all greenhouse gases equally as effective at trapping heat?

Explanation

No, Greenhouse gases differ in their ability to trap the heat.