Download App

Model Paper 1 — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYModel Paper 13 Marks
Question
What are ecological pyramids. Which point should be kept in mind while calculating it. Draw a diagram of energy pyramid of a grass ecosystem.
✓

Answer

self

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 "3 Marks Question" from Model Paper 1→Model Paper 1 — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

A child is born with ADA-deficiency.
a. Suggest and explain a procedure for possible life-long (permanent) cure.
b. Name any other possible treatment for this disease.
→
A spermatogonial cell has 30 chromosomes. How many chromosomes will be found in:
  1. The primary spermatocyte.
  2. The spermatid?
→
  1. What are transgenic animals?
  2. Name the transgenic animal having the largest number amongst all the existing transgenic animals.
  3. Mention any three purposes for which these animals are produced.
→
State the significance of pollination. List any four differences between wind pollinated and animal pollinated flowers.
→
In a maternity clinic, for some reasons the authorities are not able to hand over the two new-borns to their respective real parents. Name and describe the technique that you would suggest to sort out the matter.
→
Explain logistic growth with equation.
→
What is sewage? In which way can sewage be harmful to us ?
→
What is meant by biological evolution?
→
Name the glandular layer of human uterus.
→
Explain by taking three different examples, how certain organisms pull through the adverse conditions, when unable to migrate under stressful period.
→