Implantation refers to the zygote embedding itself into the lining of the uterus. (True or false?)

Implantation refers to the zygote embedding itself into the lining of the uterus.
 
  Indicate whether this statement is true or false.

Question 2

From the ninth week until birth is known as the embryonic period.
 
  Indicate whether this statement is true or false.

Question 3

The first two weeks of prenatal development are called the germinal period.
 
  Indicate whether this statement is true or false.

Question 4

Compared to a person without the APOE4 allele, a person with one APOE4 allele has _____ times the risk of developing Alzheimer-type dementia in old age while a person with two APOE4 alleles has _____ times that risk.
 
  8; 20
  20; 8
  80; 200
  200; 80