PLEASE HELP M if you can please answer all three 1. When climbing, where should a mountain biker center their weight?

A over the back wheel for a better push
B over the front wheel for better pull
C between the front and back wheels
D over the handlebars

2. Which of the following pacelines is formed in extremely strong crosswinds?

A single paceline
B echelon
C peloton
D double paceline

3. Which is not one of the main disciplines of competitive mountain biking?

A four-cross
B ascensions
C cross-country
D trials

What should be changed to make the following sentence true? "the stress model suggests that people with a predisposition for a disorder are more likely to develop the disorder when faced with stress."

Life expectancy in the united states is (76.4 for men and 81.1 for women). life expectancy is not the same as healthy life expectancy. healthy life expectancy is the number of years a person is expected to live in this number is obtained by subtracting years spent in poor health from overall life expectancy. the world health organization (who) calculates healthy life expectancy in 194 countries. the united states ranks twenty-ninth in the world using this measurement, with an average of of healthy life expectancy. singapore ranks number one (76 years), and japan is number two (75 years).

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.