Answer:
false
proteins dont provide hormones
Answer:
I think that fats lead to hardening of the arteries and thus affect the heart ... this is in my opinion
So I think it's C
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.
