If you have a second fixture around, you can use the same test of putting a tube in a working socket and see if it lights. It is not uncommon in fluorescent fixtures to have the ballast burn out. You may detect a burnt smell or see the bulbs flickering.
Answer:
Genetic drift is simply a change in the frequency of alleles in a population.
Like shown in the comic A, there are different genes present on chromosomes. All of these genes are made up of a pair of alleles. These alleles determine the genotype and the resulting phenotype of an organism.
If none of the alleles is favored by the environment, then a population will have equal no.of all the variant forms of a trait. Like shown in the comic B, both the green and the grey animals are favored equally.
But if natural selection occurs and one form of the allele variant is favored, then a genetic drift will occur. Most of the organisms will have the alleles which are favored by the environment. Like shown in Comic C, where the grey alleles are favored more than the green alleles.
Answer:
Alcohol fermentation or ethanol fermentation is a type of anaerobic respiration by which organism (such as yeast) convert sugar such as glucose, sucrose et cetera into ethanol and carbon dioxide in order to produce energy. First, glucose is converted into 2 molecules of pyruvate by the process of glycolysis.
Calcium
Calcium helps build and maintain bones.
H2o is the most common molecule in the human body. Remember the fact that 70% of the human body is made of water? H2o is the molecule for water, meaning that H2o is the most common molecule.
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