Which of the following best defines dynamic stretching? a. dynamic stretching features slow, deliberate, controlled motions useful for activity preparation and reducing muscle tightness. b. dynamic stretching features bouncing and swift motion useful for increasing range of motion. c. dynamic stretching features stationary stretching useful for increasing muscle power and elongating muscles. d. dynamic stretching features stationary stretching with a partner useful for increasing muscle potential.

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

Rotenone is an insecticide that is toxic