What is the meaning of parasitology?

Parasitology is the study of parasites. It is a branch of biological  science that deals with the study of parasites as well as  parasitism.

The parasites can be animal parasites such as toxoplasma or human parasites. A parasitologist is a person who has been trained in the study of parasites. Parasitologists study unicellular parasites such as malaria and Leishmaniasis and multicellular parasites such as ascaris lumbricoids, hookworms and flukes.

Parasites cause disease in humans and therefore parasitology is an important tool that helps address the problem.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.