Lt has to be the 2nd answer. Some substances must be dissolved in water before they can be used.
pls mark as brainliest if it's right!
Cardiac muscle cells appear striates or striped under a microscope.
Hello there!
The principle of diffusion consists in the movement of substances through a membrane from a zone with high concentration, to a zone with low concentration, until the concentration is equal on both sides of the membrane.
An example of diffusion is the process that happens when we breathe. Two substances in the body that will move based on the principles of diffusion are Carbon Dioxide and Oxygen. Carbon Dioxide will move from the bloodstream to the alveoli, and Oxygen will move from the alveoli to the bloodstream.
