The physiology, behavior, and other qualities of a particular organism or class of organisms.
Answer:
Explanation:hmm think about your vocab
Easy. HISTORY or GEOGRAPHY books of specific areas you want to know more about.
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.
