Hi, you've asked an Incomplete question. However, I provided a brief about cell theory. 
<u>Explanation:</u>
The cell theory basically states that all living things are made of cells and that the cell is <u>the basic unit of life.</u> Robert Hooke, who was a Scientist is known to have originated (coined) the term “cell” in the year 1665.
Basic Facts about Cell theory:
- the basic unit of life is the cell
- all living things have one or more cells.
- already existing cells produce all new cells.
 
        
             
        
        
        
photosynthesis as a whole takes place in the organelle called chloroplast but light reaction takes place in the chloroplast stroma
 
        
             
        
        
        
Answer:
DNA replication occurs in the cytoplasm of prokaryotes and in the nucleus of eukaryotes. 
Explanation:
 
        
             
        
        
        
Answer:
C
Animals have a mitochondria, a nucleus, and a cell membrane, bu they do not have chloroplasts. You can only find chloroplasts in human and plant cells, not a animal's cell. Hope it helps!