Answer:
The correct answer will be option D.
Explanation:
The virus is the infective agents which are made up of assembled macromolecules like proteins, lipids, nucleic acids and carbohydrates.
These are not considered as living organism as they do not possess the characters of a living cell like metabolism.
They are unable to do anything without a host cell that is it needs the machinery of the host cell to live like the replication machinery which is used by the virus to replicate inside the cell.
Thus, they are not considered living organisms and option D is the correct answer.
"Diplo-" refers to a bacterial arrangement consisting of two bacteria.
Answer:
Naturally acquired immunity
Explanation:
Naturally acquired immunity is the immunity developed by an individual from a previous exposure to a pathogen or disease. This confers future protection on the individual from acquiring the disease
The main function of white blood cells is to help protect the human body from infection as well as other foreign materials. White blood cells are also known as leukocytes, and they develop in bone marrow from stem cells. There are five different types of white blood cells<span>, including neutrophils, lymphocytes, monocytes, eosinophils and basophils.</span>
