Answer: Four pulmonary veins.
Explanation: Oxygen and nutrient rich blood will flow from the lungs back into this part called the left atrium (Or as some will call it, the left upper chamber in the heart). From there, it goes through four pulmonary veins.
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Answer:
Option B. is correct
Explanation:
Vegetarianism is the practice of abstaining from by-products of animal slaughter and the consumption of meat. Vegetarianism is often cited as a partial solution to the growing problem of deforestation and other types of habitat destruction as the human population continues to grow. The reason for this is more people can be fed using less agricultural land because vegetarians eat at a lower trophic level.
Option B. is correct
Minerals <span>that are heavy, durable, and chemically resistant are likely to be found in placer deposits. A placer deposit </span><span>is an accumulation of valuable minerals</span>
Pioneer species are often hardy plants with Adaptations such as long roots, root nodes containing nitrogen-fixing bacteria, and leaves that employ transpiration.
Characteristic of many trans-membrane proteins is the presence of tyrosines and tryptophans at the aqueous interface .These amino acids serve as interfacial anchors that can interact simultaneously with the membrane hydrophobic interior and the aqueous exterior.
