Which is a common viral disease? What helps spread infectious disease?
True or false-people die from colds each year
Which is a common bacterial disease?
True or false- Washing your hands can help protect you from dangerous pathogens.
True or false- infectious diseases are caused by organisms or viruses that enter and multiply within the human body
Physical lines of defense include what
When a doctor feels for lymph nodes, he is checking for?
True or false- dogs, ticks, and mosquitoes can spread disease
Immunity is?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Contrast how pollination is different among gymnosperms and angiosperms.

A(n) is a molecule influences the way that a molecule reacts.