Explanation: The prime importance of the the living organism to live their life is obtain energy from the food they eat or from the food they make.
The energy is absorbed by the plants from the sun. The radiant energy from the sun is absorbed by the producers and food is prepared by the help of it. This food is consumed by the other heterotrophic organisms on earth.
Hence, the source of energy on earth is solar energy.
Energy required for life mostly comes from solar energy. Sun is the most essential source of energy. Plants absorbs solar energy and use it in the photosynthesis. It is necessary for the growth of plant. Those plants are consumed by humans and other animals. Solar energy provide heat and warm up the living creature. It maintains the environmental temperature. It also maintain the temperature of sea and water bodies. Solar energy is also essential for the growth of micro organism.
The dna replication enzyme that most closely resembles rna polymerase is Primase. Which is the RNA that synthesizes RNA primers during DNA replication.
The human genome density ranges between 12-15 genes per Megabase pairs. This is because humans have approximately 2000 genes in a total of approximately 3 billion base pairs. However, some primitive organisms have an even larger gene density
than humans. An example is bacteria with gene densities ranging between 100 –
500 genes/Mb. Gene density is therefore
not a good characteristic in determining
the complexity of an organism.
