True. Metamorphic rocks are pre-existing rocks that have been modified through the exposure to unusual temperatures and/or pressures. It has been used for blackboard, roofs, sidewalks, floors, and marble is an example of a  metamorphic rock that is used to make floor tiles, countertops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings. 
        
             
        
        
        
Central dogma is done by all cells which involves the process of DNA replication, transcription and translation. DNA replication involves making of a new DNA molecule  to copy the genetic information and takes place in the nucleus of a cell while Transcription is the formation of a mRNA from DNA molecule by RNA polymerase a process that takes place in the nucleus. Translation involves formation of polypeptides from the messenger RNA which takes place in the cytoplasm (cytosol) of both prokaryotic and eukaryotic cells in an organelle known as ribosomes.
        
             
        
        
        
Answer:
B
Explanation:
<em>Respiration </em><em>can </em><em>happen</em><em> </em><em>without</em><em> </em><em>sunlight</em><em>,</em><em>but </em><em>photosynthesis</em><em> </em><em>cannot</em><em>.</em><em>a</em><em>n</em><em>d</em><em> </em><em>photosynthesis</em><em> </em><em>doesn't</em><em> </em><em>take</em><em> </em><em>place </em><em>at </em><em>night</em><em>,</em><em>so </em><em>less </em><em>carbon dioxide</em><em> </em><em>is </em><em>used </em><em>up </em><em>than </em><em>it </em><em>is </em><em>produced</em><em>.</em>
<em>I </em><em>hope</em><em> this</em><em> helps</em>
 
        
             
        
        
        
Answer:
It is the process where the plants use sunlight to gain their food. 
Explanation:
Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Hope this helps!