It's called checks and balances.
Hypothesis is the correct answer.
A hypothesis is an idea or explanation created to explain a particular situation or condition. It's an unapproved theory that is given based on very limited evidence. Thus, when Mr. and Mrs. Hill say that their kids should pursue certain careers based on the assumption that men are good at Math and women are good at writing, their message best reflects what we know as a hypothesis.
Protozoan infections are most prevalent in <u>Asia, Africa</u><u> </u>and <u>South America</u>.
Explanation:
Infections caused by protozoans in humans include severe diseases like African sleeping sickness, malaria, amoebic dysentery, giardiasis etc.
These infections are transmitted through arthropod vectors mostly through their bite. Protozoan parasitic infections are common in tropical developing countries than in the developed nations.
When travelers from non-prevalent countries like the United States travel to countries which are prone to protozoan infections, they also become susceptible and get infected when their own immune system is weakened. They become potential carriers when they travel back to their country.
African slaves were brought to English colonies to meet the demand for labor
