Which of the following systems are prepared for exercise during a warm up

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Which of the following human diseases is caused by a virus that requires reverse transcriptase to transcribe its genome inside the host cell? a) herpesb) aidsc) smallpoxd) influenza

Which of these elements of fitness should be included as part of any personal health plan? a. weight management, strength, endurance, and nutritionb. weight loss, calorie reduction, endurance, and strengthc. weight management, physical inactivity, and endurance trainingd. weight loss, strength training, endurance, and sleep reduction