B because B is the nucleus which is the storage location of DNA
Exercise performance begins to decline once water loss exceeds 2% of an individual's body mass.
Sugars such as glucose, fructose, and ribose are all examples of monosaccharides, or simple carbohydrates. Simple carbohydrates can bond together to make polysaccharides, or larger, more complex carbohydrates, such as starch or cellulose.
The limb buds appears in the in the fourth week of gestation and the
upper limb is visible on day 24. Initial elongation of the bud forms around 33
days and continues to elongate until seven weeks.
It is known as the sedimentation.. this process spreads widely (horizontally) keeping the youngest on the top and the oldest at the bottom..
hope this helps:)
