Answer:
A.) transcription factors
Explanation:
Transcription factors are often very important in initiating patterns of gene expression that result in major developmental changes.
Answer:
Cell membrane
Explanation:
Cell membrane controls what goes in and out of cells
Answer:
The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.
Explanation:
sorry if its wrong
