What is the importance of geographic isolation in speciation?

a. it allows different mutations to arise.
b. it prevents reproduction between populations.
c. it reduces competition between the populations.
d. it protects one of the populations from predation.

Answer;

B. It prevents reproduction between populations.

Explanation;

Geographical isolation refers to a population of animals, plants, or other organisms that are separated from exchanging genetic material with other organisms of the same species.

Geographic isolation causes individuals of an original species to accumulate sufficient genetic differences to prevent them breeding with each other when they are reunited.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.