30 POINTS!! Which of the following is an accurate statement about pathogens?

A. Infection and disease are caused by pathogens living in infectious agents found in the environment.

B. Pathogens, which cause infection and disease, are the most abundant organisms in the environment.

C. Most organisms in the environment are harmless, except for pathogens, which can cause disease.

D. The environment is rich in infectious agents that transmit disease through pathogens. Please help

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

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?

Blood stem cells may develop into any kind of human blood cells. what kind of stem cells are blood stem cells? a. multipotent stem cells o b. totipotent stem cells o c. pluripotent stem cells o d. unipotent stem cells