UD
F = 90 N
F = 75 N
During a game of tug-of-war, two people pull on a rope,
as shown in the image.
What is the net force acting on the rope?
EN
In which direction do the people move?
2

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

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above