List the charges that occur when an ovule matures into seed.

Explanation

`**" "`Integuments of ovules harden as tough protective seed coats.
`**" "`The micropyle remains as a small pore in the seed coat.
`**" "` As the seed matures, its water content is reduced.
`**" "`Seeds become relatively dry (10-15 per cent mosisture by mass).
`**" "`The general metabolic activity of the embryo slows down.
`**" "`The embryo may enter a state of inactivity called dormancy.