Carbon dioxide is not safe for your lungs because once it reaches your lungs it will stop your breathing and you could die.
The hearts contraction that maintains our blood pressure allowing us to breathe and exchange gases at all levels of respiration, ensuring oxygen is provided to all cells of the body, and waste products are eliminated.
The answer is A. Gravity pulls down on all parts of a plant.
The answer has to be C. karyotyping
If it is correct please give brainest if not I will fix it.
This is the image it came up with when I was searching for karyotyping.
