True or false :

fraternal twins can be boy and girl -

only one sperm can fertilize one egg -

adulthood is divided in 3 stages -

centenarian is when you reach 100 years old -

Which action is characterized of mental illness 1.brushing teeth every hour because ones mouth feels dirty ? 2. forgetting to eat breakfast on a busy day? 3.crying three days over a relationship breakup? 4.feeling embarrassed about going to school after failing in front of friends?

What ingredients used in tobacco products been banned?

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above