Download App

Biodiversity and Conservation — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity and Conservation2 Marks
Question
Why is there required conservation of biodiversity? Clarify it.
✓

Answer

Since the vedic period, man has been receiving something or the other from nature to fulfil his purposes. The earth's rich biodiversity is vital for the survival of mankind. The reasons for conserving biodiversity are narrowly utilitaria, broadly utilitarian and ethical. Besides the direct as food, fibres, firewoo pharmaeuticals etc. there are many indirect benefits we receive through ecosystem services such as pollination, pest control, climate moderation and flood contro therefore it becomes our moral responsibility to take good care of Earth's biodiversity and pass it on in good order to our next generation.

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

Explore more

More "2 Marks Questions" from Biodiversity and Conservation→Biodiversity and Conservation — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Can an extinction of one insect pollinator affect the whole ecosystem? If yes Explain.
→
Intake of cannabinoids should be banned. Justify giving reasons.
→
In a pond, we see plants which are free-floating, rooted-submerged, rooted emergent, rooted with floating leaves. Write the type of plants against each of them.
  1. Hydrilla.
  2. Typha.
  3. Nymphaea.
  4. Lemna.
  5. Vallisnaria.
→
Explain the process of pollination in Vallisnaria.
→
Mention any four benefits derived from transgenic animals.
→
In isolating recombinant insulin from a culture of E. coli, the cells were filtered and the filtrate was subjected to a purification protocol. However, no insulin was obtained.Why?
→
Explain the interdependence of producers and consumers.
→
In a dihybrid cross white eyed, yellow bodied female Drosophila crossed with red eyed, brown bodied male Drosophila produced in $F_2$ generation, 1.3 per cent recombinants and 98.7 per cent progeny with parental type combinations. This observation of Morgan deviated from Mendelian $F_2$ phenotypic dihybrid ratio. Explain, giving reasons, Morgan’s observations.
→
Match Column I with Column II.
S. No.
Column I
S. No.
Column II
A.
Cleavage
1.
Outer layer of the blastocyst that attaches to the endometrium during implantation.
B.
Implantation
2.
Mitotic divisions of the zygote in quick succession.
C.
Inner cell mass
3.
Embedding of the blastocyst in the endometrium of uterus.
D.
Trophoblast
4.
Release of secondary oocyte from the ovary.
E.
 
5.
Group of cells attached to one end of trophoblast that differentiate into embryo proper.
→
Explain Structure of ecosystem.
→