Question
Explain how biodiversity is important for human.

Answer

  1. Humans derive numerous economic benefits directly from diversity of organisms.
  1. Food products (cereals, pulses and fruits), firewood and fibre (cotton, jute from plants and Silk, wool from animals).
  2. Construction material (timber for making furniture, houses and sports goods), industrial products (tannis, lubricant, dyes, resins and perfumes) and products of medicinal importance (about 25.000 plants are used in traditional medicine).
  1. There are huge indirect benefits that humans derive from the diversity of life. These are, pure oxygen, natural pollinators, flood and soil erosion control, nutrient replenishment, waste recycling by microbes and aesthetic pleasure and mental peace.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

  1. Mature seeds of legumes are non-albuminous.Then, can it be considered that double fertilization does not occur in legumes? Explain your answer.
  2. Write one similarity and one difference between autogamy and geitonogamy.
  1. Why do the symptoms of malaria not appear immediately after the entry of sporozoites into the human body, when bitten by female Anopheles? Explain.
  2. Give the scientific name of the malarial parasite that causes malignant malaria in humans.
Identify A, B, C and D in the table given below:
Micro-organism
Product
Biological activity
Medical ailment/ Procedure
A
Streptokinase
Clot buster
D
Trichoderma
B
C
Transplant
Polysporum
 
 
Surgery
Differentiate between two different types of pyramids of biomass with the help of one example of each.
State where the signals for parturition arise from, in humans.
What would happen if histones were to be mutated and made rich in acidic amino acids such as aspartic acid and glutamic acid in place of basic amino acids such as lysine and arginine?
Draw and label the enlarged view of microsporangium of an Angiosperm. State the function of its innermost wall layer.
(a) Describe the role of selectable marker in r-DNA technology.
(b) Write the name of one such selectable marker considered useful for E. coli.
(c) Write one reason why it is considered an advantageous selectable marker
State any two structural differences and one functional difference between DNA and rRNA.
The basal parts of the endometrium remain intact during menstruation. Give reason.