Pavlov's most famous experiment involved teaching dogs to do which of the following behaviors to a new stimulus?

In the moment od conception, a male's sperm unites with a female's egg to produce a(n):

a) Zygote b) Gonad c) Embryo d) Ovum

As new parents, Paul and Heather can expect that it will take about how long to adjust to new parenthood?

A) 2 to 3 months B) 6 to 12 months C) 4 to 6 weeks D) 18 to 24 months