Advertisements
Advertisements
प्रश्न
For the metamorphosis of tadpoles which of the following elements must be available in water?
पर्याय
Chlorine
Carbon
Sulphur
Iodine
Advertisements
उत्तर
Iodine
Explanation:
For metamorphosis of tadpoles, iodine should be present in water. This is because metamorphosis is brought about by thyroxine hormone that requires the presence of iodine for its production by thyroid gland.
APPEARS IN
संबंधित प्रश्न
During menstruation, the progesterone level is _____
The male and the female gamete fuse together and form ______.
_______ usually occurs 14 days after ovulation.
What is fertilization?
Give a suitable word for the following statement.
It marks the beginning of reproductive period.
Normally pregnancy lasts for ______ days.
The release of the ovum from the ovary is called ______.
The wall of ______ becomes thick to receive the fertilized egg.
Stoppage of menstruation is called ______.
The egg is released from the fallopian tube.
