<em>A circadian rhythm /sɜːrˈkeɪdiən/ is any biological process that displays an endogenous, entrainable oscillation of about 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in plants, animals, fungi, and cyanobacteria.</em>
the correct answer is a)I only
Explanation:
Water-soluble vitamins (which dissolve in water), such as vitamin C and the B vitamins, are not stored in the body and must be replaced every day.
Answer:
c) phloem-sieve plate, sieve tube, companion cell
<span>I believe it is called secondary succession.
I hope this helps!</span>
Answer:
lack of vegetation at ground-level.
