It is used by every living cell.
Cellular respiration is a process of combining oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
The correct answer would be through adaptation and eventually over time they had to evolve to the area around them which made them develop over time to have longer necks .
Answers:
A(n) operon is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway.
The Gene of an operon is arranged sequentially after the promoter
A(n) promoter is a specific nucleotide sequence in DNA that binds RNA polymerase, positioning it to start transcribing RNA at the appropriate place.
A(n) regulatory gene codes for a protein, such as a repressor, that controls the transcription of another gene or group of genes.
Regulatory proteins bind to the operator to control expression of the operon.
A(n) repressor is a protein that inhibits gene transcription. In prokaryotes, this protein binds to the DNA in or near the promoter.
A(n) inducer is a specific small molecule that binds to a bacterial regulatory protein and changes its shape so that it cannot bind to an operator, thus switching an operon on.
The organic pathway of the carbon cycle moves from atmosphere through other organisms back to the atmosphere
