Answer:
Natural selection is the process where organisms that are mostly adapted to their environment survive and pass on their genetic traits in generations.
Answer;
Antibodies.
The human immune system fights infection by releasing antibodies.
Explanation;
The immune system acts to defend the body against pathogens such as viruses, bacteria and fungi that may cause a disease.
It does so using various types of mechanism, one is by the production of antibodies.
Antibodies are proteins that are produced by the B-cell and are used by the immune system to identify and neutralize pathogens.
These antibodies also activates proteins known as complements which assist in the killing of bacteria, viruses and the infected cells.
Answer:
A - An interacting group of populations that occupy the same area.
Answer:
use google or this
Explanation:
And when is fire suppression appropriate? Experts in favor of letting natural forest fires burn unchecked argue that fire suppression disrupts the natural forest cycle and endangers the livelihoods of people who depend on the forest, and the wellbeing of the plants and animals living there.
The term which refer to organs that are positioned among the peritoneum and the muscular wall of the abdominal cavity is retroperitoneal. The retroperitoneal is a term referred as behind in rear of or posterior to the peritoneum which is a membrane that aids as a padding for the anatomical space in the abdominal cavity.
