Animals marking their territory with urine is an example of?

What did the first language sound like

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule