Answer:
The sparrows have lost their chance to ever fully learn their song
Explanation:
sparrows that don't learn their song during the critical period have lost their chance to ever fully learn their song.
the authority to make laws
They traded with them selves.
Their civilization has never paused, or changed. They still have their old cultures (sort of) They still have the same language.
Answer:
genetic
Explanation:
An ovum is a female matured reproductive cell which after the fertilization by a male sperm or cell will give produce an embryo inside the female. The fertilized egg or ovum contains certain genetic code which forms the basis of development of a newly formed life. A genetic code is important as it contains the basic building blocks of any individuals.
Hence the answer is -- genetic.