An Unexpected Tool to Track Ancient Civilizations...Bacteria

What is the significance of Helicobacter pylori in historical research?

• It causes chronic gastritis.

• It helps track ancient human migration.

• It is a common stomach bacteria.

• It is used in modern medicine.

Which technique did researchers use to analyze H. pylori strains?

• Carbon dating

• Radiometric analysis

• Approximate Bayesian computation

• Genetic sequencing

How did ancient humans likely travel from Siberia to North America?

• By sea

• Through a tunnel

• By air

• Over a land bridge

What environmental factor contributed to the evolution of gut bacteria?

• Predator presence

• Dietary habits

• Geographic separation

• Climate change

What characteristic of hyraxes led to the discovery of a new species?

• Their diet

• Their vocalizations

• Their habitat

• Their size

What physical differences were noted in the new hyrax species?

• Different eye colors

• Different body sizes

• Different coat colors and skull shapes

• Different tail lengths

How do rivers contribute to speciation in animals?

• By offering shelter

• By changing climate

• By acting as natural barriers

• By providing food resources