It was the Precambrian time that lasts 7/8 of the earths history. So, A.
Answer:
a. suprachiasmatic nucleus.
Explanation:
The circadian rhythm is an internal process that regulates daily cycle (sleep/wake conditions through the 24 hours). This process is performed by circadian clock which is located in hypothalamus, in the suprachiasmatic nucleus. It has been shown that when the suprachiasmatic nucleus is destroyed, regular sleep–wake rhythm is lost.
The suprachiasmatic nucleus sends information to the pineal gland, which secretes hormone melatonin (regulator of sleep–wake cycle).
Answer: i dont know the answer
Explanation: bla bla bla bla bla
Answer:
ATP is used to reduce CO2 to sugar.
Explanation:
The Calvin Benson cycle is a set of chemical reactions that takes place in the chloroplast during photosynthesis.
ATP and NADPH produced by light reactions are used to reduce CO2 to sugar. Carbon enters the cycle as CO2. ATP is the energy source while NADPH is the reducing agent that adds high energy electrons t form sugar.
