The answer is C . Temperature
Answer: Option B. "increase the surface area of the mucosa of the small intestine."
Explanation:
Circular folds and intestinal villi present in small intestine and performs function of increasing the surface area of mucosa and support absorption.
The circular folds are projected towrads lumen in small intestine showing valvular flaps. The circular folds are further covered by finger like projection called intestinal villi.
The circular folds functions by slowing down the passage of food which is partly digested and with the help of villi it increases the mucosal surface area and further support absorption of fatty acids in blood.
Hence, the correct option is B.
Answer:
There are many ways that chromosomal mutations can occur, but for starters:
Duplication: Happens when extra copies of a specific gene are generated on a chromosome.
Inversion: Inversion includes when a broken chromosome segment is reversed and sent back into the chromosome.
Genetic equilibrium describes the condition of an allele or genotype in a gene pool (such as a population) where the frequency does not change from generation to generation.However, there are conditions or factors that may alter or disturb the genetic equilibrium in a population.These conditions include;
Non-random mating
small population size
immigration or emigration
Mutations (spontaneous random changes that occur in the genome)
Natural selection.