What does an uniformity in a sequence of rock layers reveal about geologic history? a. a rock layer must of turned upside down b. a layer of rock might have eroded c. the layers must cover hundreds of square miles d. the layers must have deposited very quickly

Why are some places regularly warmer or cooler than others in a given month

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.

Describe the structure of amino acid, including what makes amino acids different from eachother