Answer:
The correct answer will be option-B
Explanation:
Locus coeruleus is a nucleus composed of neurons in the pons region of the brainstem. The pons and brainstem are involved in the physiological responses of panic and the stress conditions.
Nor-epinephrine is the hormone which is produced in the stress and fear conditions and produces fight or flight response. The nor-epinephrine is produced from the adrenal medulla in the kidney and the brain. The part of the brain involved in the production of Nor-epinephrine is locus coeruleus.
Thus, Option-B is the correct answer.
Your nose and your mouth are both a portal of entry into your body. If you cover one and not the other it defeats the purpose because Bacteria can still enter the system. They are both part of your respiratory system.
The sequential events in the Arctic ecosystem feedback loop are: Global temperature increases → permafrost thickness decreases → methane increases → global temperature increases. It is harmful to the Earth.
The Arctic ecosystem is a feedback loop because the warmer the temperatures, the less sea ice (permafrost) is observed.
The Arctic ecosystem feedback loop is a dangerous phenomenon because it accelerates global warming.
Permafrost refers to ice ground that remains completely frozen (0°C) for at least two (2) or more years straight.
Learn more about the Arctic ecosystem here:
brainly.com/question/1178916
Answer:
D.
Explanation:
It will stay the same no matter how the atoms are rearranged
