Biology
Which of the following is not a necessary condition for the germination of seeds ?
- Air
- Water
- Soil
- Warmth
Related Questions
Gynoecium is made up of :
- Carpels
- Pistils
- Stamens
- Both (1) and (2)
Which part of the flower attracts insects for pollination ?
- Calyx
- Corolla
- Stamens
- Stigma
Assertion: Androecium is the third whorl of the flower. It is made up of stamens which produce pollen grains at the time of reproduction.
Reason: Pollination and fertilization are essential steps of reproduction in plants during which male gametes fuse with the ovule and a seed is produced inside the ovary.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion: Cross pollination occurs between different flowers of two plants of the same species. These flowers get pollinated by wind, water, insects, etc.
Reason: Wind pollination always occurs between the flowers of plants occurring in close vicinity and not among the flowers of distant plants.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.