Four barriers that protect humans from pathogens include the mucus of the upper respiratory system, the acid mantle of the skin, the stomach acid in the digestive system, and the cervical mucus of the female reproductive system. There are also celular barriers via the immune system that prevent infection.
it is physically possible for humans to live in the wetlands, although, because of the moist environment, many humans choose not to. there are many alligators and swamp-animals which are not friendly toward humans, so you wont find humans living there.
Humans don't need earthquakes any more than we need broken bones. But the way our world is put together, with big plates rubbing up against each other, they can't be avoided.
The movement of humans into a population is called migration.
chamara silva
in the scope of geologic time, how significant is the presence of humans?
yes. Pathogens are diseases
By the pathogen man.
Most humans think they're healthy.
The human body's defense against disease is directly related to the immune system. The immune system is responsible for protecting the body from harmful pathogens such as bacteria, viruses, and other foreign substances. It does this by identifying and destroying these invaders to help keep the body healthy.
White blood cells are a critical part of the body's immune system and help to defend against pathogens such as bacteria, viruses, and other harmful invaders. They work by identifying and destroying these pathogens through various mechanisms, including engulfing them, producing antibodies, and coordinating immune responses.
Vector.
The major reservoirs of pathogens include humans, animals, insects, and the environment. Pathogens can be carried and transmitted by these reservoirs, leading to the spread of diseases. It is important to identify and control these reservoirs to prevent the transmission of pathogens.
it is healthy for humans to eat fat because they need it for insulation.
some are flu , HIV , std
Pathogens can infect humans through inhalation of respiratory droplets, contact with contaminated surfaces and objects, ingestion of contaminated food or water, and through bites from infected animals.
Humans need to keep healthy if they are to avoid the risk of dying prematurely.
No amount of chicken eggs is healthy for humans.