Flatworms have a concentration of nerve tissue and organs in one end of the body. what is the name of this characteristic? . the following choices are: nerve nets. . cephalization. . segmentation.

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

Identify the area on the image where the force of attraction is the strongest.

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?