Telomeres are protective sequences of nucleotides found at the ends of chromosomes,Which become shorter every time a cell divides.
A gradual degeneration of an organism occurs, resulting in ageing.
However, some cells are able to replenish their telomeres using the enzyme telomerase. 
Hope this helps! :)
        
             
        
        
        
The distinguishing characteristics of the free living members of sarcodina are:
1. These are pseudopods (function in locomotion) which makes it the extentions of protoplasm.
2. These have both a clear ectoplasm and a granualated endoplasm.
3. These have nucleus both food vacuoles and contractile vacuoles.
 
        
             
        
        
        
I am a mycologist. A person who studied biology major mycology. Mycology is the study of fungi. An expert in fungi's genetic and biochemical makeup, pathogen, and taxonomy. I also study benefits and usage in humans as food and medicine together with the innate danger and poisons.  
        
             
        
        
        
This is an example of; evolution
Evolution is a gradual process in which the characteristics of a species are changed in response to its environment over several generations. Evolution depends on the process of natural selection. Some of the changed characteristics (traits) may be beneficial to the organism and it can be transferred to their offspring.
 
        
             
        
        
        
they are so unique and seen often