Answer: Darwin had stated in The Origin of Species that “all the organic beings which have ever lived on this Earth may be descended from some primordial form”,
Explanation:
The answer is letter A. In most organisms cellular respiration usually involves oxygen to produce the most energy. Except in the process of fermentation, where the cells are deprived with oxygen causing it to form bacteria and other forms of organisms within the fermented sample.
The 3 domains are bacteria, archaea, and eukarya. The domain bacteria consists of the kingdom 'bacteria'. The domain archaea consists of the kingdom 'archaea.' The domain eukarya consists of the kingdoms 'plantae', 'animalia', 'fungi', and 'protista.'
The function of Helicase in the process of DNA replication is to untwist the double helix and separating the two DNA strands. This action of helicase creates the replication forks and replication bubbles where the process of replication is initiated. Their main role is the separation of double-stranded DNA into single strands allowing each strand to be copied during the process of replication. It may also function in other cellular processes where the double-stranded DNA must be separated, including transcription and repair. <span />
Read about country Nepal. It has mountain , hill and terai region favouring wide range of life?