Answer:
Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide. Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body.
Explanation:
Answer:
They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
Answer:
UACAGCGACUAUGACA
Explanation:
mRNA and DNA have the same nucleotides, except mRNA has U (Uracil). U bonds with A (Adenine).
Hope that helps.
