Ở ngô bộ NST 2n=20,hãy trình bày diễn biến kết quả và ý nghĩa quá trình nguyên phân của các tế bào xôma ở loài cây này

If the experiment was perfomed more then once and you get the same results

The salt in the sea water dehydrated the sailor because her body could not take in the amount to salt in the sea water

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

There are no negative consequences to using nuclear energy.  false. how is the   the hydrogen bomb relies on the process of nuclear fission. true.