Make a chart with e on the x-axis (1 – 10 gpa) and yield strength on the y-axis (10 – 100 mpa). select polypropylene (pp) and its various grades by applying a ‘tree’ stage selecting polymers – thermoplastics – pp (folder). label at least 10 records on the chart (from the bottom, middle, and top). insert the chart below, and then explain the trends you see. discuss the effects of 1) homopolymer versus copolymer, 2) ‘neat’ homopolymer versus additives, and 3) additives of particles versus fiber

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

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Why are common names a problem for scientist?