At two years of age, the brain already has attained 75 of its adult weight.
Indicate whether the statement is true or false
Question 2
Which of the following statements is true of a heart attack?
A) It can be fatal if the victim is not attended to within the first two hours.
B) It is caused by a deficiency of estrogen in the body.
C) It is caused by the uncontrollable division of cells.
D) It is treated by methods such as radiation and chemotherapy.