Unlike ionic bonds, covalent bonds involve the a. loss of one or more electrons from one atom to another. b. gain of one or more electrons by one atom from another. c. sharing of electrons between atoms. d. development of positively and negatively charged ions.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.