Aresearcher decides to test the scientific validity of the common phrase "an apple a day keeps the doctor away". what would be a valid hypothesis to investigate this specific question?

The correct answer is would be - Eating a single apple every day changes the frequency or number of visiting doctors.

Explanation:

A hypothesis is an explanation or an idea that is based on the observation with prior scientific knowledge which meant to be tested by the experiments and scientific methods.

In this phrase, one can get an idea about the effect of intake of an apple every day affects the numbers of the visits to the doctor it can be hypothesized by two hypothesis-

1) Eating an apple a day does not change the frequency of visiting the doctor. or.

2) Eating an apple on a daily basis decreases the number of visiting doctors.

Thus, the correct answer would be -  Eating a single apple every day changes the frequency or number of visiting doctors.

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.