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Plants pt 2

Across
Food supply for the seed
Two plants as the result of parent plant being severed.
Makes up the female flower parts.
"naked seeds"; approximately 1000 species.
Only happens in angiosperms; results in (3n) tissue.
The protective coating surrounding male gametophytes in seed plants.
Plant-pollinator relationships that may explain diversity of flowering plants.
Chemical and physical defenses plants use to protect against ___.
Hard protective coating of the ovule; sporophyte tissue.
Down
Develops into the pollen grain.
A new stem of a plant that shoots out away from the original plant.
Makes up the male flower parts.
___ occurs when the male gametophyte travels to the ovule.
Seeds 'contained'; approximately 250K species.
Unflaggellated sperm is transported in ovule via ____.
Asexual reproduction where seeds are 'fertilized' by mitosis.
Referring to differentiated sizes and locations of male and female spores.
Seed plants have a further reduction in the ___ stage.
Once sperm travels through the ___ a chemical change occurs and it closes.
In terms of (n), the food supply in gymnosperm seeds is surrounded by ___ tissue.