Photosynthesis takes in carbon dioxide & lets out oxygen & glucose
In animal cells centrioles are located in, and form part of, the centrosome where they are paired structures lying at right angles to one another. In this context they are possibly involved in spindle assembly during mitosis. The centrosome is positioned in the cytoplasm outside the nucleus but often near to it.
Hypothesis could be tested by actually doing them to see if it works or not...
If your having trouble controlling your heart rate the best thing to do is stop doing what your doing and take 3 deap breaths and the pase back in forth for a short time
