The mass number of carbon-12 is twelve as it contains 6 neutrons and 6 protons. Likewise, carbon-13 isotope contains 7 neutrons and 6 protons, while carbon-14 isotope contains 8 neutrons and 6 protons.
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.
It is present in plant cells but not in animal cells
The forest fire released CO2 (Carbon dioxide)which is essential for plants but CO (Carbon monoxide)is harmful to many organism including humans.But the forest fire isn't always bad. Sometimes it is a opportunity for predator to hunt animals while they are fleeing for life. Small animals can hide under rock or burned wood to escape fire. Snakes bury themselves in soil. Some of them isn't so lucky, koalas will climb up to the treetops then stick there.
Answer:
B. a substance that can donate an H+ ion
Explanation:
