It means that only those who are able to adapt with all conditions they are placed in will be able to live.
Explanation:
Their ability of producing the woman's sex cell is destroyed, now they can not produce eggs and their menstrual cycle is also stopped known as menopause.
The correct asnwer to your question - why would a group of antelopes leave the herd for search of a better grassland is an example of emigration - B.
These antelopes would emigrate to a certain grassland and be immigrants in that grassland. This has to be distinguished.
The hormone calcitonin, which is produced by the parafollicular or C cells of the thyroid, has the opposite effect on blood calcium levels as does PTH. I hope this helps! : )
Answer:
A. It contains the reproductive organs of the plant to
create seeds.