Answer:
The main difference between sieve tubes and companion cells is that sieve tubes are the long, narrow, pointed tubes present in the phloem of angiosperms whereas companion cells are attached to the sieve tubes, regulating the activity of sieve tubes.
Answer:
Raectant-
NAD+, FAD, GDP, Pi, H2O, and Acetyl CoA
Product-
NADH, H+, FADH2, GTP, and CO2
Explanation:
I believe the answer you are looking for is they are all body systems found in the human body, or organ systems.
Answer: i beleive its A the first one i did this a few weeks ago
