Ihave moist skin but no scales, and two pairs of legs. although i have lungs and live on land, my young usually live in water and use gills to breathe.

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?