Approximately one billion oxygen molecules. that is because there are about 250 million molecules of haemoglobin in each cell, and each haemoglobin molecule binds to 4 oxygen molecules
Answer: Liver
Explanation:
The hepatic portal system of liver connects the capillaries of the gastrointestinal tract to the liver. The nutrient rich blood from the gastrointestinal tract reaches the liver.
The blood that is returned back to the heart is first bought to liver and then it is returned back to the heart.
From the liver after processing the blood goes into heart for further processing.
Hence, the correct answer is option d
Answer:
NASA is a U.S goverment acengy. It is responsible for sciecne and technology realted to air and space.
Explanation:
NASA opened for on October ,19.58. The agency was created oversee U.S space exploritation and areonautics research.
NASA stand for (National Aeronautics and Space Administration.)
Answer:
Explanation:
Hippocampus is important for forming long term memories, while the Prefrontal cortex is responsible for memories retrieval.
The pH will decrease because lemon juice is very acidic meaning it would bring the pH level down to a more acidic value.
