Which statement is a hypothesis is that would best address the question "does sunlight or temperature of the rabbit's habitat affect fur thickness? "
question 4 options:
a)
rabbits like to eat grass.
b)
if a rabbit lives in a warm habitat, then their fur will be less thick.
c)
rabbits will have dark fur in warm habitats.

A) surely isn't a hypothesis that could be used to assess the question "does sunlight or temperature of the rabbit's habitat affect fur thickness" because it doesn't talk about fur thickness.

B) could be a hypothesis. However, hypothesis usually are not stated in if-then clauses. However, it also does contain an idea with a possible consequence.

C) is the correct answer. This idea predicts that rabbits in warm habitats will have dark fur. This is how hypothesis are usually stated. 

The answer is joseph is observing the colour of the reaction mixture to see whether proteins are present in the given solution.