Asmall child managed to eat a bit of dirt while playing outside. which of the following would prevent the child from getting sick from the bacteria ingested?

a if there were not a pathogenic bacteria in the dirt

b if the child had previously taken antibiotics for that type of bacteria

c if the child already had the antibodies to fight the bacteria

d if the child’s cells had complementary receptor molecules that bind to the bacteria

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?

According to your text, should be in the native language of the parents or guardians whenever possible. a. an email b. consent forms c. oral approval d. storybooks loaned out

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen