It seem like there are information missing on the question posted. Let me answer this question with all I know. So here is what I believe the answer is, the catalyst has acted upon it.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
A shell is considered as biotic (living) because it is a hard, rigid covering of many animals such as snail, sepia, pila, turtles, sea urchins. A shell is protective outer layer of these soft bodied animals.
Less people would buy and the economy's health would go down.
Answer:
Explanation: both prokaryotes and eukaryotes contain cell membrane
You see, passive transport needs no energy. So that being said, it moves from areas with high concentration to areas with low concentration.
Hope that helps!
