Which part of the trunk dies quickly?
Sapwood
Inner bark
Heartwood
Vascular cambium

answer; i believe the correct answer is ( proteins );

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high