They are called transmission electron microscopes.
answer
D
explanation
because for to become a scientific theory it needs evidence before it
The answer is D. it cycles around
Answer:
When an organ is transplanted in the body, the immune system will attack the organ as it would attack any foreign cell. The use of it in transplant surgeries decreases the strength of the immune system by reducing its antibody production in order to reduce its attacks on the new organ.
(hope this helped <3 brain list? if not then that's fine :D)
