D. They were exposed to the same agents of weathering.
Lichens use chemicals to break down rocks, which will turn into soil.
Answer:
any living thing
Explanation:
an organism is anything that is alive/living in our world today
Here one of the answer Red Cedar Tree
Answer: Option II.
B cells and T cells undergo colonial selection after encountering an antigen.
Explanation:
B cells are a type of lymphocytes or white blood cells that produce hormones so as to activate the immune system in other to provide a defence or fight against pathogens.
T cells are lymphocytes immune cells that fight against pathogens in the body.
Both T cells and B cells undergo colonial selection after encountering an antigen. The major difference between them is that T cells
