Questions

Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.

When is genetic drift a major factor in evolution is

* When there is low gene flow.

* When there is no selective pressure.

* When there is a bottleneck.

A procedure or method called Checks and Balances stops one branch of government from becoming too powerful.

• In the United States, there are three branches of government: The Executive, Legislative, and Judicial.

• Each has its own responsibilities and at the same time they work together to make the country run smoothly and to assure that the rights of citizens are not ignored or disallowed.

• There is a clear separation of powers between them.

• Checks and Balances limit the power within each branch.

• Each branch can stop and/or override processes within other branches in manners that are outlined in federal laws, regulations, and the constitution.

• This way, their powers are balanced because the branches of government have the responsibility to check each other.

An operating system has three main functions:

(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers,

(2) establish a user interface, and

(3) execute and provide services for applications software.

W is the symbol for chemical element Tungsten or Wolfram.

It is used in making filaments of bulbs.

A river which can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps.