yes
Women do have physical signs and feelings when they are fertile. Some women are more aware of them than others. In general, women are more receptive to having sex when tey are fertile. Knowing when you are ready to have a child is a different subject all together.
Because, first of all, the land near it was moist and very fertile, secondly, the Nile had an annual flood that brought new soil and more water . . . So the land near the Nile got moister and land farther away got moist and fertile for a while.
no i would move them out the hamsters could get in a fight or eat the others babies
to add your strength to another person and get a very hard or heavy job done easier.
Definitely not. Women differ widely. Some are able to get pregnant as early as the tenth day of their cycle, which actually begins with the first day of their period (not ater the period ends) while others are able to get pregnant still on day 20. In general, most women have their most fertile time between days 12 - 16.
Different for everyone. Some get pregnant straight away, others a little while longer, others never can get pregnant again
Some mixtures are easier to seperate than others because some mixtures are heterozygous mixtures. These mixtures are easier to seperate then others because you can see what is in them so you would know how to get them out.
The truuth is NO ONe gets pregnant "thinking" about sex. The act has to occur. For those that do have sex some people due to heredity, health or other reasons have a harder or easier time dependent on those things.
As breeders we call them "Viable eggs". They are fertile but they may not end up as chicks. "Fertile chicken eggs" is just as good when discussing them with others.
Some women are just more fertile than others by nature. There are unsupported claims that certain foods or lifestyle choices make certain women more fertile. Younger women tend to be more fertile than older women.
Some people find rational fractions easier, others prefer decimals fractions. For some purposes rational fractions are simpler, for others decimals are easier. So there is no simple answer.
There is not a specific breed easier than others. They all have their pluses and minuses.