Answer:
renewable
Example:
as long as theres wind,there is electricity
Genetic variation allows for mutations to occurs where survival of the fittest occurs. This makes sure that the most adapted creatures survive and are able to pass their genes on to offspring. Thus causing evolution.
The correct answer is: B) continuous transcription of the structural gene controlled by that regulator
A regulatory gene is gene that encodes for a protein, such as a repressor (or activators) that controls the transcription of another gene or group of genes.
The regulatory gene of a repressible operon encodes for the repressor that inhibits gene transcription. So, when that repressor isn’t active, transcription occurs continuously.
Answer:
Hydrogen bonds make water molecules spread out when they freeze. This makes ice less dense than water and allows ice to float. If ice did not float then oceans and lakes would freeze from the bottom up, killing marine life by trapping organisms in the ice. When ice floats, it insulates the water below, keeping it at around 4 degrees C or 40F, which does not freeze and allows fish to survive the winter.
Explanation:
The are formed by cells building carbohydrates polymers, they use energy
to form glycosidic linkages..the bonds between monosaccarides...which
is made by joining two specific monomers, glucose and fructose.
