The environment needs to in order for natural selection to occur.

In which of the following relationships is one organism always benefited while the other organism is always harmed

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 will happen to the amount of food available as a pondwater ecosystem ages