Introduction
Mycoplasmas are a group of bacteria that lack a cell wall and are known for their uncanny ability to cause a wide range of diseases in both plants and animals. They are often referred to as "jokers of the plant kingdom" due to their ability to cause a variety of symptoms, which can range from mild to severe.

Mycoplasma in Kingdom Monera
Mycoplasma is a type of bacteria that belongs to the kingdom Monera, which also includes other types of bacteria such as cyanobacteria and spirochetes. Unlike other bacteria, mycoplasma lacks a cell wall, which makes it resistant to many antibiotics that target the cell wall.

Mycoplasma's ability to cause diseases
Mycoplasmas are known for their ability to cause a wide range of diseases in both plants and animals. In plants, mycoplasmas can cause a variety of symptoms, including stunted growth, yellowing of leaves, and abnormal development of flowers and fruits. In animals, mycoplasmas can cause respiratory infections, urinary tract infections, and other diseases.

Uncanny ability to mimic other organisms
One reason why mycoplasmas are often referred to as "jokers of the plant kingdom" is their uncanny ability to mimic other organisms. For example, some mycoplasmas can mimic the symptoms of virus infections, making it difficult for plant pathologists to diagnose the disease. Similarly, some mycoplasmas can mimic the symptoms of other bacterial infections, making it difficult for veterinarians to diagnose the disease in animals.

Conclusion
In conclusion, mycoplasmas are a group of bacteria that lack a cell wall and are known for their ability to cause a wide range of diseases in both plants and animals. They are often referred to as "jokers of the plant kingdom" due to their ability to mimic other organisms and cause a variety of symptoms, which can range from mild to severe.

Mycoplasma is the free living organism which has ability to change it's shape and size according to environment this property is called pleomorphic nature which means many form.