C Transcription factor because
Transcription factors are proteins that control which genes are turned on or off in the genome. They do so by binding to DNA and other proteins.
Answer:
Connective Tissue.
Explanation:
In the absence of lumen, without much arguments, it looks like a densely packed <em>connective tissue. I</em>i<em>i</em>i<em>I</em>t possesses a low cell count when it is been compared to the extracellular matrix.
Answer:
The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells. The circulatory system also transports oxygen from the lungs to the cells.