How can DNA be used as an evolutionary clock?How can DNA be used as an evolutionary clock?

Why are some people more concerned about shark survival than about shark attacks?

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

Do you think humans have a moral obligation to preserve the habitat of the chimpanzee