When nerve cells are at rest, there is an unequal amount of positive and negative charges on either side of a nerve cell membrane. is charge di erence is called an electrical potential. describe this “potential” when the neuron is at rest (resting

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

Which locations on the map are low-pressure areas? a b c d e

Which of these is not a nucleotide base found in dna?