Question

one way to improve the validity of these results would be to
conclude that darkness is necessary for lettuce seed germination
conclude that light is necessary for lettuce seed germination
disprove the hypothesis
repeat the experiment

the position of galaxies in the universe was once hypothesized to be constant, but evidence gathered by edwin hubble indicated that many galaxies are actually racing away from earth at high speeds. which statement is best supported by this discovery?
a hypothesis is the correct answer to a problem.
science is a body of knowledge that is subject to change based on data.
a hypothesis becomes a law when there are data to support the hypothesis.
science is a body of knowledge based on the work of well-known scientists.

Explanation:

The discovery that galaxies are moving away from Earth (contradicting the previous hypothesis of constant galaxy positions) shows that scientific knowledge (in this case, about the universe) can change based on new data. A hypothesis is not always the correct answer (so the first option is wrong). A hypothesis doesn't become a law just with data support (third option is wrong). Science isn't just based on well - known scientists' work but on evidence and data (fourth option is wrong).

Answer:

A hypothesis is the correct answer to a problem. - Incorrect.
Science is a body of knowledge that is subject to change based on data. - Correct.
A hypothesis becomes a law when there are data to support the hypothesis. - Incorrect.
Science is a body of knowledge based on the work of well - known scientists. - Incorrect.

So the answer is: Science is a body of knowledge that is subject to change based on data.