Answer:
D. All cells must be reproduced by another cell.
Explanation:
The cell theory has a couple key components, which are as follows:
#1. Cells are the basic unit of life.
#2. Cells have hereditary data that is passed down to their offspring.
#3. All cells come from preexisting cells.
#4. All organisms, both unicellular and multicellular, are made of one or more cells.
#5. Energy flows through cells.
#6. All cells have a similar composition.
The answer is a hope it helped
<span>Colloid cloudy and cannot be separated into oil and water by filtration or centrifuge. On the basis of collagen in Gelatin, it could be one type of colloid. Butter is an example of colloid. Colloids have bigger particles than Suspensions, its emulsion basically.</span>