How does the yolk sac nourish the embryo?
How does the yolk sac nourish the embryo?

How does the yolk sac nourish the embryo?
How many embryo sacs are present in an ovule?
What is an embryo sac in plants?
What is the name for the outer sac protecting a developing embryo?
Which one of the following is not a part of the embryo sac (angiosperm female gametophyte)?
When can you see the embryo in the sac?
Where is the embryo sac found?
What is the name for the outer sac protecting a developing embryo?
When can you see the embryo in the gestational sac?
What happens if there is no embryo in the sac?