Question

this diagram shows the life cycle of an apple tree.
an apple tree grew from a seed that was produced by self - pollination. how many parents does this apple tree have?
one two

Explanation:

Self - pollination means the pollen comes from the same plant. So the apple tree that grew from a seed produced by self - pollination has only one parent plant (the plant that provided both the pollen and the pistil for pollination).

Answer:

one