<span>B. Mucus, sweat, and tears are some of the body's nonspecific defenses against invading pathogens.</span>
<span>the atmosphere is polluted from the human race...anthropogenic waste (basically thats man made pollution caused by industry, -factories etc)...this in turn is going to affect both the biotic and abiotic parts of the environment (living and non living parts) ...because both factors are affected by pollution- living organisms adapt to the environment around them...for e.g plants(living factor) in a certain area that are used to growing in an acidic soil may have to adapt to a soil that gains an even higher P.H (due to pollution from the atmosphere) this is an illustration of the relationship between living and non living parts of the environment due to the increasing poor quality (change in atmospheric composition) of the atmosphere ....hope thats of some help,,,the best thing is always to break the question down in parts :)</span>
Research over hundreds of years has consistently found that boys naturally outnumber girls at birth. The speculation is that this is nature’s way of countering the relatively high mortality rates of males, and creating more of a gender balance in the population.
In fact boys have 51% likelihood to be born and girls have 49% likelihood to be born. Therefore the test of this result is like a biased coin not a fair coin. Given that both sides of the coin aren’t equal one will dominate over the other.
Even though each birth is independent of each other unless you did anything told by websites to have a girl or by your Obgyn to have a girl then you will have a boy because 51 dominates over 49.
Please look at this link to get the idea of how biased coins are
http://www.eecs.harvard.edu/~michaelm/coinflipext.pdf
They form lactic acid which needs to be broken down as it is dangerous to the cel