One word answer is Mutation nothing is perfect but some bacteria also have changes from conjugation aka sex between bacteria even though they are asexual organisms
        
             
        
        
        
There are no disadvantages to an individual with the peppered moth.<span />
        
             
        
        
        
Answer:
tiny region of the brain in the hypothalamus, situated directly above the optic chiasm.
 
        
             
        
        
        
Please put the choices so we can help you futher please and thanks!
        
             
        
        
        
Ans: maintain homeostasis
Homeostasis is any
self-regulating process by which biological systems tend to maintain stability
while adjusting to conditions that are optimal for survival. It is the stable
state of an organism and of its internal environment. Maintenance of
homeostasis usually involves negative feedback loops. These loops act to oppose
the stimulus, or cue, that triggers them. The stable condition is the condition
of optimal functioning for the organism, and is dependent on many variables,
such as body temperature and fluid balance, being kept within certain pre-set
limits.