Question

a teacher has asked four students to state a scientific theory. which student is correct?
a antonio
b boris
c chandrelle
d danielle
scientific theory

student	theory
boris	illnesses are caused by germs such as bacteria and viruses.
chandrelle	the moon orbits the earth and the earth orbits the sun.
danielle	humans came from monkeys and apes.

Explanation:

A scientific theory is a well - substantiated explanation of some aspect of the natural world. Antonio's statement is an observation, not a theory. Boris's statement about illnesses being caused by germs is the germ theory of disease, a well - established scientific theory. Chandrelle's statement is a fact about celestial mechanics, not a theory in the strict scientific sense of a comprehensive explanatory framework. Danielle's statement is a misrepresentation; humans and monkeys/apes share a common ancestor, not that humans came directly from monkeys and apes.

Answer:

B. Boris