12 - A piece of liver and a piece of bread are both crushed and mixed with water. A sample of
both is added to THREE test tubes, A, B and C.
Salivary amylase is added to Test tube A and pepsin is added to Test tube B
Describe what would happen to the liver and the bread in EACH test tube. A and
B.
Test tube A

Test tube B

Which of the following statements about brain development and early childhood is true? the brain of a 5 year old is 60 percent the size of an adult brain the overall size of the brain does not increase dramatically from ages 3-15 by the time a child is 3 years of age, the brain is 25 percent of it's adult size the development that occurs inside the brain ends at the onset of adolescence