Mikhail gorbachev resigned as president of the soviet union in december 1991. why? because
a. the u. s.s. r. was dissolved in december 1991
b. boris yeltsin had been chosen to replace him as leader of the nation
c. his set term of office elapsed
d. he lost a vote of confidence in the soviet parliament

Type the correct answer in the box. use numerals instead of words. fiona has a lovely flower bed in her yard. she wants to add a fence along one side of the flower bed. the fence material is sold in meters. fiona knows that her flower bed is 200 centimeters in length. how much fencing material does fiona need in meters? fiona needs meters of fencing material for her flower bed.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Why was mendel's work not accepted at the time? o a. his results were false. o b. he did not repeat his experiments. o c. he did not have any data. o d. his results were surprising,