Question

Bacteria have a simpler body plan when compared with human beings. Does it mean that human beings are more evolved than bacteria? Provide a suitable explanation.

Answer 1

• This is an issue of debate. It depends on the way we evaluate evolution. 
• If complexity of the body is a parameter then Human are far superior than bacteria. 
• Bacteria has cellular level of organization and humans have organ level organization. 
• On the other hand if we consider the ability of survival bacteria have evolved more than human beings. 
• Humans can live in any environment but with artificial protection. 
• Humans cannot live in harsher climate whereas bacteria can be found anywhere on earth. 
• They can survive even harsh climates such as 
• Hydrothermal vents, sulphur springs.