Answer:
The answer is Cryptogams and Phanerogams.
Explanation:
- <u><em>The kingdom Plantae is divided into two subkingdoms: Cryptogamae and Phanerogamae</em></u>
1) D
2) B
3) C
HOPE I HELPED!!!!!
The statements above are true;
In a host-versus-graft rejection the recipient's immune system recognizes the donor's tissue as foreign and rejects the transplant. On the other hand, in a graft-versus-host rejection, the donor tissue recognizes the recipient's tissue as foreign and the transplant rejects the recipient, causing destruction of the recipient's tissue and possibly death. Its important also to note that there are two types of rejection, the acute rejection, where the rejection of transplanted tissue that occurs several weeks after transplant. it is delayed hypersensitivity reaction, and the chronic rejection is a rejection of transplanted tissue that can occur at a late time. Immune complexes form in the arteries supplying the graft, choking off the blood supply and the tissue is rejected.
Answer: germ theory
Explanation: Germ theory of disease is a theory in biology. It says that small organisms (called germs), also known as microbes, cause diseases. Most, but not all diseases are infectious diseases. The germ theory states that small organisms cause a reaction in the body of those who are infected. The body's reaction to infection is called a disease.
Reference: Wikipedia
Answer:
c) Having a small population size
Explanation:
Endangered species are generally those whose population is declining or in a very limited range. Some of other characteristics of endangered species may also be habitat loss, indiscriminate hunting by man or predators, and disease.
