Answer:
5
Explanation:
Nitrogen has 5 electrons in its n=2 (outer) shell.
Flvs
<span>The largest of these is the aorta, or main artery, which carries nutrient-rich blood away from the heart. Another important vessel is the pulmonary artery which connects the heart with the lungs as part of the pulmonary circulation system.</span>
Answer:
Hey there,
The answer is actually D) The cost to global systems as carbon emissions increase from fossil fuel combustion, leading to climate changes.
Hope this helps :D
Explanation:
The molecule necessary for respiration to occur in both plants and animals is NADH or Nicotinamide Adenine Dinucleotide Hydride. This compound is necessary for cellular development and energy production: It's crucial to produce energy from the food one consumes. It's also the principal carrier of electrons in the energy-producing process in the cells.
OR
Cellular respiration requires energy from an organic source (ie- glucose and oxygen). Without these, the reactions cannot take place. Oxygen is also needed. It acts as the final electron acceptor in electron transport.
Inner core, outer core, mantle, crust