The 6 kingdoms are P<span>lants, Animals, Protists, Fungi, Archaebacteria, and Eubacteria.</span>
Diffusion, in biology terms, can be defined as a process when molecules move from a high concentration area, to an area of low concentration. To illustrate, if you were to drop a drop of red food coloring in clear water, the way the color is spreading throughout the water would be an example of diffusion.
Hello!
The heart is kind of like the "base" or "hub" for blood. The heart will send of blood and receive blood, and send it off again. It allows for blood to be bumped through the whole body.
I hope this helps!