1. Double fertilization is found in a) angiosperms only b) cryptogams only c) bryophytes d) A. O.T

materials water oxygen those are the things i can think of in this moment.

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.

i think the answer would d

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's