Answer:
organ level
Explanation: because multiple types of tissues are working together.
The answer is B Adipose tissue.
We know that it cant be C or D
And A was wrong.
Temperature difference and Earth's tilt
For this information to be true, that would mean freckles is a dominant trait, and to not have freckles is a recessive trait. So that means if even someone's genotype has both the freckle and the no freckle gene, their phenotype will be freckles.