As we inhale air, oxygen enters the respiratory system and the circulatory system to transport it to the other parts of the body and to all cells. As the oxygen is already transported, the blood becomes deoxygenated and carries a CO2 which returns to the lungs and then we exhale the carbon dioxide.
Before it leaves the nucleus, the mRNA is spliced to create mature mRNA. This splicing involves that cutting out of introns, leaving only the exons - which are the segments which code for a protein. Before it leaves the nucleus, the mRNA is spliced once again to create mature mRNA.
A.) The cell prepares for cell division.
Answer:
crab and lobster
Explanation:
they have the most similar genetic background
Answer:
The escape velocity of the Earth is about 11 km/s. In other words, anything on the Earth's leading side would fly off into space, continuing along the Earth's orbital path around the sun. ... Without the outward centripetal force to counteract the inward pull of gravity, the Earth would begin falling towards the sun.
Explanation: