Which statement correctly describes compounds? Compounds cannot be broken down into simpler substances by chemical means. Each compound is composed of one type of molecule. Compounds can be broken down into simpler substances by physical means. Each compound is composed of one type of atom.

To be or not to be that is da question

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

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.