Primary sex characteristics of males include the A. ability to produce sperm.
B. appearance of facial hair.
C. deepening of the voice.
D. development of muscles

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells

Prone a. front b. back c. facing up d. facing down anterior a. front b. back c. facing up d. facing down

Directions: good communication between parents and teens is very important. yet, communication with parents is often a source of conflict. read these two articles about the communication between adults and teens. the first is written for parents and the second is written for teens. after reading the articles, answer the questions below. use complete sentences. 1. do you think the article provides good advice? why or why not? 2. what is one thing you learned from the article written for parents? 3. what is one thing you learned from the article written for teens? 4. using the information you read as a source, write a short article for your school newspaper to parents and teenagers communicate better. your article should be at least three paragraphs long. be sure to include the following information: • explanation of the importance of good communication between teens and parents • communication advice specifically for parents • communication advice specifically for teens