Cut dna into small fragments.

restriction enzymes

nucleic acids

nucleotides

none of the above

The influenza virus cause the flu, but not other diseases. why?

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Lymphatic vessels remove excess fluid from tissues. often after mammexront( the surgical procedure to remove of all or part of a breast) the lymphatic vessels draining the arm are damaged. explain a consequence of this damage. what can be done to reduce the symptoms?