Changes from Ferns to Gymnosperms

Retained from Fern to Gymnosperm

Ferns have retained from bryophytes:

In gymnosperms:
1. Eggs are produced by a large cone. The female gamete is called ____. It is produced inside a ____.
2. Pollen is produced by a small cone. The male gamete is called a ___. It is produced in a ____.

After meiosis, megaspores are produced, only one of which survives to grow into a multicellular ____ (the other three degenerate in situ).

Angiosperm's 2 great advances:

Sporophyll

sorus (pl. sori)

megasporangiate strobilus

megasporophyll

megasporangium

megasporocyte

megaspore

megagametophyte

microsporangiate strobilus (pl. strobili)

microsporophyll

microsporangium

microsporocyte

microspores

pollen

microgametophyte

pollen tube

cotyledons

seed

integument

seed coat

monocotyledons

eudicotyledon

flower

inflorescence

sepal

calyx

petal

corolla

stamen

anther

filament

carpel

ovary

ovule

stigma

style

double fertilization

endosperm

fruit