Reproduction in Hydra and Plant Propagation
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Questions and Answers

What is the advantage of germination of seeds for plants?

  • Seeds ensure asexual reproduction, leading to genetic diversity.
  • Seeds lead to regeneration of lost body parts in plants.
  • Seeds contain the future plant embryo, ensuring continuity of the plant species. (correct)
  • Seeds facilitate vegetative propagation by forming new individuals.

Why is sexual reproduction significant for humans?

  • Sexual reproduction leads to genetic diversity and adaptability to changing environments. (correct)
  • Sexual reproduction allows for rapid increase in population size.
  • Sexual reproduction guarantees asexually reproduced offspring.
  • Sexual reproduction ensures identical offspring with no genetic variation.

What is a limitation of regeneration in complex organisms like humans?

  • Regeneration leads to rapid healing of wounds.
  • Regeneration cannot replace highly specialized organs like the heart or brain. (correct)
  • Regeneration allows for complete regrowth of lost body parts.
  • Regeneration results in immediate genetic variation.

How does vegetative propagation benefit plants?

<p>Vegetative propagation allows plants to reproduce without seeds. (C)</p> Signup and view all the answers

Which process ensures genetic diversity in a species?

<p>Sexual reproduction (A)</p> Signup and view all the answers

What differentiates vegetative propagation from seed formation in plants?

<p>Seed formation involves sexual reproduction, while vegetative propagation does not. (D)</p> Signup and view all the answers

What is the limitation of asexual reproduction?

<p>Does not lead to genetic diversity (D)</p> Signup and view all the answers

Why is sexual reproduction significant?

<p>Increases genetic variation (A)</p> Signup and view all the answers

What is a limitation of regeneration in complex organisms?

<p>Can only occur in simple organisms (D)</p> Signup and view all the answers

What is the significance of vegetative propagation in plants?

<p>Allows for reproduction without seeds (A)</p> Signup and view all the answers

In tissue culture, what happens after cells are placed in an artificial medium?

<p>Cells divide rapidly to form callus (C)</p> Signup and view all the answers

Why is tissue culture commonly used for ornamental plants?

<p>To maintain disease-free conditions (C)</p> Signup and view all the answers

What is a limitation of asexual reproduction in terms of genetic diversity?

<p>It results in offspring that are genetically identical to the parent. (D)</p> Signup and view all the answers

Why is sexual reproduction significant for organisms?

<p>It results in offspring with high genetic diversity. (B)</p> Signup and view all the answers

What is a limitation of regeneration in complex organisms like humans?

<p>Regeneration cannot replace lost limbs or organs in humans. (D)</p> Signup and view all the answers

Which statement best describes vegetative propagation?

<p>Vegetative propagation leads to plants that are genetically similar to the parent plant. (B)</p> Signup and view all the answers

What is a common agricultural use of vegetative propagation?

<p>Growing plants like sugarcane and grapes for agricultural purposes. (D)</p> Signup and view all the answers

Why does vegetative propagation lead to earlier flowering and fruiting in plants?

<p>As plants raised by vegetative propagation are clones of the parent plant. (C)</p> Signup and view all the answers

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