In biological classification, the organisms are grouped on the basis of their cellular structure, presence or absence of cell wall, presence or absence of a membrane-bound nucleus, motility, ability to produce food, mode of reproduction, and mode of nutrition. They are classified so as to distinguish the differently related organisms from each other and to study evolution, as well as better understanding of the biological system.
You didn’t link the statements but i think the earth life originates from the big bang which formed small living organisims.
They can be replaced by a healthy environment
The function of a cell membrane is to protect the structures within the cell, give shape to the cell and support its structure.
The correct answer is: The virus has entered the genome of the bacterial cell and is in the lysogenic stage
Lytic cycle and lysogenic cycle are types of a bacteriophage’s life cycle.
Lytic cycle can be divided in stages:
• Attachment-viruses binds to the receptor on the surface of bacterial cell, usually it uses tail for the attachment
• Entrance-virus injects its genome material (DNA or RNA) into bacteria cell
• Replication and protein synthesis-virus uses mechanism of bacteria to replicate its genome and produce proteins. As a consequence, a huge number of new viruses are formed
• Lysis- viruses express protein for the bacterial lysis (bacterial cell expand and burst) and hundreds of new phages are released.
Lysogenic cycle is different: bacteriophage’s genetic material-prophage, integrates into the host bacterium's genome or forms circular replicon in the bacterial cytoplasm. Bacterium continues to live and reproduce normally but prophage can be transmitted to daughter cells.
