Blood flowing through the human circulatory system moves nutrients and oxygen to cells and carries waste and carbon dioxide away from cells how are the circulatory system and the respiratory system related in humans PLEASE HELP ME FASTT PLEASEEE

What do you need to use in order to work as an environmental scientist? you need to use the scientific method and__ in order to work as an environmental scientist.

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.

Which process takes place last in the human being which process takes place last in the development of a human being