I'd say agriculture, though in more recent years you could argue for mining.
Answer:
The larval form of Schistosoma mansoni gains entry into the intact skin with the help of the <u>proteases enzyme</u>.
Explanation:
Parasitic worms, also known as Helminths, are eukaryotic multicellular parasites. These parasites produce certain molecules that help them to enter into the tissues of the host cell.
Example of a parasitic worm is the larval form of Schistosoma mansoni parasite. The larval form of this parasite is known as miracidium. The miracidium causes schistosomiasis or snail fever.
<u>The miracidium gains entry into the intact skin with the help of the proteases enzyme, which the degrades the proteins of the skin.</u>
Temperature control is another negative feedback mechanism. ... This example is very complex because the hypothalamus can change the body's temperature set point, such as raising it during a fever to help fight an infection. Both internal and external events can induce negative feedback mechanisms.
