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Chapter 26: Q.26 (page 697)

What is biodiversity and why is it important to an ecosystem?

Short Answer

Expert verified
  • The number and variety of plants, animals and other organisms that exist in an ecosystem is known as biodiversity.
  • It is a measure of the variety of organisms present in different ecosystems.
  • Biodiversity has an intrinsic value and biodiversity performs a number of ecological services for humankind.

Step by step solution

01

Step 1

Biodiversity is the degree of variation of life forms within a given ecosystem, biome,or an entire planet.

02

Step 2

Importance

  • Biodiversity is essential for stability of an ecosystem.
  • Biodiversity serves as source of food and provides source material for new improved varieties.
  • Various products of human use can be obtained from rich bioiversity, e.g., gums, resins, dyes, paper, fibres, etc.

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Most popular questions from this chapter

Biosynthesis of nectar and nutrient-rich pollen is energetically very expensive for a plant. Yet, plants funnel large amounts of energy into animal pollination. What are the evolutionary advantages that offset the cost of attracting animal pollinators?

What are the two structures that allow angiosperms to be the dominant form of plant life in most terrestrial ecosystems?

In the course of double fertilization, one sperm cell fuses with the egg and the second one fuses with ________.

a. the synergids

b. the polar nuclei of the center cell

c. the egg as well

d. the antipodal cells

The Cretaceous Period was marked by the increase in number and variety of angiosperms. Insects also diversified enormously during the same period. Can you propose the reason or reasons that could foster coevolution?

Which of the following structures in a flower is not directly involved in reproduction?

a. the style

b. the stamen

c. the sepal

d. the anther
See all solutions

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