Natural selection does not always result in an increase in genetic diversity.
a. true
b. false

The answer is "a. True".

Genetic variation is a proportion of the genetic contrasts that exist inside a population. The genetic variation of a whole species is regularly called genetic diversity.  

Genetic variations are the distinctions in DNA sections or genes  among people and every variety of a quality is called an allele. For example, a population  with a wide range of alleles at a solitary chromosome locus has a high measure of genetic variation. Genetic variation is basic for normal choice since common choice can just increment or reduction recurrence of alleles that as of now exist in the population.

"a.) well–developed vascular system."

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.