DNA is made of nucleotides that binds together forming as a DNA sequence which dictates an organism's characteristics and features. Moreover, these nucleotides are considered in two forms; the purine (AG) and pyramidine (CTU). Now similarities between two DNA sequences can be obtained through observance of their 3' and 5' tails.
There was no life on Earth for the first billion years because the atmosphere was not suitable for life. Earth's first atmosphere had lots of water vapor but had almost no oxygen. Later, frequent volcanic eruptions put several different gases into the air.
The answer is <span>fermenting plant material to produce ethanol. The farmer was able to come up with a new product besides his harvested plants.He can now make this as a business and start to gain profit. Ethanol can also be linked as a source of material to make other related products. </span>
Brain death: is the legal definition of death. It is the complete and irreversible stop of all brain functions. This means that as a result of severe aggression or severe brain injury, the blood that comes from the body and supplies the brain is blocked and the brain dies.
Agonal phase: occurs with the realization of the preceding events when life is about to break free of the protoplasm, because the protoplasm cannot sustain it for long.
Clinical death: is defined by the cessation of electrical activity in the brain, resulting in irreversible and total loss of neurological activity in the brain and brainstem. When doctors officially declare a person's clinical death, it means there is no cure or return to recovery.
Mortality: It is the condition of being mortal, therefore, of being susceptible to death. However, the term mortality is in most cases related to the statistical studies applied on populations. So mortality appears as a number that seeks to establish the number of deaths over a given population.
