In which type of attachment does a child show clear distress when the caregiver to whom he is attached leaves, but ambivalence when the caregiver returns?

Which is true concerning anal sex?

A) The rectum produces natural lubricant. B) The anal sphincters dilate during orgasm. C) It is the major act that comes under legal definition of sodomy. D) It tends to be more common among less educated people.

Who is credited for his work with the language of honey bees?

a. Lorenz. b. Allen. c. Von Frisch. d. Wason.