What characteristic do all living things share?
a. they are made of cells.
b. they give off carbon dioxide.
c. they are mobile.
d. they have a heart.

answer; the above answer to the above statement is (true)

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

c

explanation:

i think that it is plants