Allele frequency is a product of the environment and remains constant and never changes within a population over time? A. True
B. False

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind

What are several ways to reduce the effect of friction?