Which school-based change had the largest impact on physical activity expenditure in youth in terms of MET hours gained per day?
A. After-school physical activity programs
B. Walking/biking to school
C. School recess
D. Mandatory physical education
Answer: D
Health & Biomechanics
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The average age of first time mothers has increased by how many years from 1970 to 2009?
A. 2.6 years B. 3.6 years C. 5.6 years D. has not risen
Health & Biomechanics
Research techniques based on the naturally occurring relationship between two or more variables are known as the ________ method
a. case study b. correlational c. experimental d. naturalistic observation
Health & Biomechanics
Sperm are produced in the:
(a) epididymis (b) scrotum (c) vas deferens (d) testicles
Health & Biomechanics
A medical term that means pertaining to the embryo is ____________________
Fill in the blank(s) with correct word
Health & Biomechanics