Answer:
C- Hepatic portal vein
Explanation:
The hepatic portal vein is a vessel that moves blood from the spleen and gastrointestinal tract to the liver.
The portal vein supplies approximately 75 percent of blood flow to the liver. It's not a true vein, which means it doesn't drain into the heart. Instead, it brings nutrient-rich blood to the liver from the gastrointestinal tract and spleen. Then the liver can process the nutrients from the blood and filter out any toxic substances it contains before the blood goes back into general circulation.
Carbon is released into the atmosphere only during the burning of fossil fuels
Explanation:
During the process of fuel burning, carbon is released in the atmosphere. The human invented power plants, factories, cars and other vehicles releases carbon in the form of carbon di-oxide in atmosphere.
However, the cellular respiration is similar to that of fuel burning as it is too a combustion process. But the carbon produced in this process fuels the inner cellular activities rather than releasing it in the atmosphere.
Auto - troph
auto means self, troph means related to nutrition or feeding
autotroph
Answer: B
Condensation is a process via which a liquid directly converts to a gaseous state, skipping the liquid state altogether. Therefore, a very cloudy sky is an example of water being converted to gaseous state directly.
