Help pls When throwing a ball, why does the triceps muscle contract?

A. The contraction of the triceps muscle causes the arm to flex.

B. The contraction of the triceps muscle causes the arm to extend.

C. When added to the force of the biceps contracting, it provides extra force to the ball.

D. The triceps muscle needs to contract in order to keep the muscle from relaxing.

This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shoes a decrease in percipitation, and blue shows an increase. the maps differ based on the predictive levels of green house emissions. the maps shows that northern area should get a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.southern areas show a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.to use these maps to prepare for natural disasters in the great plains, scientist need to ask? a. how many tons of emissions were used at the basis of the map.b. which types of fossil fuels are used in the great plains c. if you think the above is wrong it's probly c the question is cut off

This is the process of making a prediction based on the results of prior observations of similar events.

What does it mean for an allele to be dominant?