The center of the retina, the fovea, contains a mixture of about 75 percent rods and 25 percent cones

Down syndromes is caused by a chromosomal abnormality

Indicate whether the statement is true or false

Sexual assault in prison _________

A) ?is rare. B) ?is estimated to affect almost one in five prison inmates. C) ?usually involves perpetrators who identify as gay. D) ?is perpetrated by inmates, never by guards.