Which statement describes how favorable traits in a population relate to natural selection?
They are the only traits that ever exist in the population.
They build in the population over time.
They are rarely passed on to offspring.
They are found only in a few individuals within the population.

case study case study case study case study case study case study case study case study case study case study case study

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

What materials must dams have to produce electricity, and what must occur?