The Challenger Deep is in the southern end of the Mariana Trench. It is estimated to be 305meters deep.
Positive control is Ginger root (should indicate the presence of amylase)
Negative control is Cellulose (should not contain amylase)
Here the presence of amylase is tested by testing the presence of starch using an IKI solution. Saliva is included in this experiment because it contains the enzyme amylase.
Answer:
Researchers believe that the size difference between male and female brains results from the influence of:
gender identity
Explanation:
individual difference would only allow such as no published journals by researcher to affirm the obvious difference in the brain size of male and female
