What are the major groups of microorganisms?

What are the major transport mechanisms for CO_(2) ? Explain.

Mention four major groups of protozoans

What are the major components of seminal plasma?

What are the major causes of species losses in a geographical region?

What are the major functions of male accessory ducts and glands?

[A] : Mycoplasma are the smallest free living microorganisms . [R] : They are prokaryotic and lack cell wall .

Which one of the following acts as a physiological barrier to the entry of microorganisms in human body

Which one is the most important role of microorganism of the well being of humans?

What are the major parts of the brain? Mention the functions of different parts.