Download App

Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYSexual Reproduction in Flowering Plants2 Marks
Question
Explain giving two reasons why pollen grains can be best preserved as fossils.
✓

Answer

  1. Pollens are produced in large numbers.
  2. The sporopollenin in exine protects the pollen from harsh conditions.

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 Sexual Reproduction in Flowering Plants→Sexual Reproduction in Flowering Plants — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Eichhornia crassipes is an alien hydrophyte introduced in India. Mention the problems posed by this plant.
→
What is integrated organic farming? Mention its advantages.
→
Meiosis is an essential event in the sexual cycle of any organism. Give two reasons?
→
Classify the following as primary producers and secondary producers:
  1. Phytoplanktons.
  2. Deer.
  3. Zooplanktons.
  4. A pea plant.
→
What is the medical use of cyclosporin A?
→
Define auto-immune disease. Give two examples.
→
Not all characters show true dominance. What are the two other possible types of dominance? Give an example of each.
→
Explain the relationship between CFC's and Ozone in the stratosphere.
→
Answer the following questions:
List the differences between the embryos of dicot (pea) and monocot (grass family).
→
  1. Name a terminal method to prevent pregnancy in humans.
  2. Describe the procedure of the terminal method carried in human male and female.
→