Gonna need a bit more information then that if you want an answer.
Cells are the basic unit of structure and function in organisms.
Needless to say, organisms can’t be a thing if cells didn’t exist.
1ml of milk = 1g
of milk<span>
and in 1 gram of whole milk, there is only one
calories
and in whole milk the percentage of milk
fat is 3.25%</span>
To get the percentage of milk fat, divide the
grams of fat present in milk by the total weight of milk and then multiply by
100.
<span>There are many
types of milk, like skimmed milk, low fat milk, partly skimmed, raw milk, whole
milk etc. in all these types the percentage of milk fat is different.</span>
The crossing over is a process that is essential to human genetic diversity. During the crossing over parts of the homologous chromosomes ( two chromosomes identical by structure, but different in origin, one inherited from the mother and one from the father) randomly exchange parts of their sequences.
If the crossing-over didn't exist, this would greatly decrease the genetic diversity, because the chromosomes would always bee passed o the next generations unchanged.