Based on the information above; which explanation would be considered scientific law? a) the explanation of how the universe began with a "big bang". b) the explanation of how poor farming methods led to the dust bowl. c) the explanation of how earthquakes and volcanoes are caused by crustal plate movement. d) the explanation of how different celestial bodies react with one another due to gravity.

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 is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

Which step is not included in the step approach to calculating the greatest common divisor?