IGCSE Biology Paper-3: Specimen Questions with Answers 260 - 261 of 358

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Question 260

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Short Answer▾

Choose words from the list to complete the spaces in the sentences.

Each word may be used once, more than once or not at all.

In humans, the female gamete is the egg and the male gamete is the …

Both gametes are … cells.

An egg is produced by an … and passes along an … to reach the uterus.

When humans reproduce, their gametes fuse to form a cell called the …

Explanation

In humans, the female gamete is the egg and the male gamete is the sperm.

  • Both gametes are haploid cells.
  • An egg is produced by an ovary and passes along an oviduct to reach the uterus.
  • When humans reproduce, their gametes fuse to form a cell called the Zygote.

Passage

Many flowering plants can reproduce sexually and asexually.

Question 261 (1 of 7 Based on Passage)

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Write in Short

Short Answer▾

State one advantage and one disadvantage of asexual reproduction for flowering plants.

advantage. .

disadvantage …

Explanation

The Advantages of Asexual Reproduction Include

  • the population can increase rapidly when the conditions are favorable.
  • only one parent is needed.
  • it is more time and energy efficient as organism don՚t need a mate.
  • it is faster than sexual reproduction.

The Disadvantages of Asexual Reproduction Include

  • it does not lead to genetic variation in a population.
  • the species may only be suited to one habitat.
  • disease may affect all the individuals in a population.

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