To be malnourished means to lack proper nutrients that keep you healthy say a person likes fast food and eats only fries for a long period of time they will lack nutrients and get sick which is the bodies way of saying you need to eat a variety of food.
Answer:
Darwin would have said that variation of sizes, tail colors, and tail shapes were due to the guppies developing some unique traits that had made them more preferable to breeders.
The breeders then used artificial selection to pick guppies with these desired characteristics.
These guppie then passed these favorable genes to their offspring.
The guppies without these traits were not selected and hence were wiped out.
These traits are particular to the breeders preferences.
2 in the first and remaining 4 in the (outer) shell
D.uracil is the nitrogen base bind with adenine