Question

A hypothesis is a possible explanation or answer to a question. Hypotheses should be testable. Which of the following sentences is the best hypothesis?

A.
If a person falls asleep, then their heart rate will decrease.
B.
If a pillbug becomes frightened, then it will roll up into a ball.
C.
It is better to live in a city than in the country.
D.
Why are plant leaves green?

Answer 1

The answer is A)

This hypothesis could be tested because it can be measured. The experiment would need a dependent and independent variable, constant and control variable.

Answer 2

i am caught between A. and B. but, my brain says its A.