Answer:
(Cystoplasm) and (Ribosomes) are common in most living cells
Explanation:
The hormone described above is the hormone Melatonin.
Melatonin is a hormone secreted by the pineal gland in the brain, which helps regulate other hormones and maintains the body's circadian rhythm. This rhythm is an internal 24 hour clock that plays a critical role when we fall asleep and when awake. When it is dark the body releases more melatonin.
Answer:
The box has blocked the sunlight from the waterweed and it has stopped photosynthesising
Explanation: