Which list shows the scientific veiw of the first apperance on earth, beginning with the earliest and ending with the most recent? a. cyanobacteria, trilobites, dinosaurs, wooly mammoths b. dinosaurs, wooly mammoths, trilobites, cyanobacteria c. cyanobacteria, trilobites, wooly mammoths, dinosaurs d. cyanobacteria, dinosaurs,,trilobites, wooly mammoths

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.

Why is there more biomass at the producer level that at the consumer levels ? how does this relate to the 10% rule ?