Topic: Plant Transport Subtopic: The importance of phloem and xylem
What are companion cells?
Answer: Companion cells grow on the side of the sieve tubes. These cells are believed to be efficient for the movement of food through the tubes.
- Does bronchi and bronchioles process air?
- What is job of heart?
- What is egestion?
- What are red blood cells made up of?
- What is photosynthesis?
- What are antibodies?