Advertisements
Advertisements
Question
For the metamorphosis of tadpoles which of the following elements must be available in water?
Options
Chlorine
Carbon
Sulphur
Iodine
Advertisements
Solution
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
RELATED QUESTIONS
Reproductive age in women starts when their ______.
During menstruation, the progesterone level is _____
During pregnancy, the corpus luteum continues to grow and produces large amount of estrogen and progesterone.
Explain Menarche.
Explain the process of pregnancy.
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 ______.
Stoppage of menstruation is called ______.
What is menopause?
